F&M NATIONAL CORP
424B3, 1999-02-02
NATIONAL COMMERCIAL BANKS
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                                                 File Pursuant to Rule 424(b)(3)
                                                 File Number 333-70261


                              [Security letterhead]
                    MERGER PROPOSED - YOUR VOTE IS IMPORTANT

Dear Fellow Shareholders:

      We cordially  invite you to attend a special  meeting of  shareholders  of
Security Bank  Corporation to be held at Security's  main office located at 8780
Centreville Road, Manassas, Virginia on Thursday, March 11, 1999 at 8:00 a.m.

      The purpose of the meeting  will be to consider  and vote on the merger of
Security  into F&M  Bank-Northern  Virginia,  a subsidiary  bank of F&M National
Corporation, a bank holding company headquartered in Winchester, Virginia.

      In the  merger,  you will  receive  shares  of F&M  common  stock  with an
aggregate  market  value of $17.25 for each share of Security  common  stock you
own. In general,  you will not recognize federal income tax gain or loss for the
F&M common stock you receive.

      The market value of F&M common stock will be determined at the merger date
based on its  average  closing  price over a ten day  period.  Accordingly,  the
number of F&M shares you will receive in the merger cannot be determined now. As
an example,  however,  you would have received  0.597 shares of F&M common stock
for each common share of Security you own based on the $28.875  closing price of
F&M common  stock on January  28,  1999.  F&M's  stock is listed on the New York
Stock Exchange.  The most recent trade on the Nasdaq SmallCap Market of Security
common stock occurred on January 14, 1999 at $16.00 per share. These prices will
fluctuate between now and the merger.

      The merger cannot be completed  unless holders of more than  two-thirds of
Security  common stock approve it. If approved,  we  anticipate  the merger will
occur on March 22, 1999.

      This proxy  statement/prospectus  provides you with  detailed  information
about  the  proposed  merger.  We  encourage  you to read this  entire  document
carefully.  You can also obtain more  information  about F&M in documents it has
filed  with the  Securities  and  Exchange  Commission  and  about  Security  in
documents it has filed with the Federal Reserve.

      Your Board of Directors has  unanimously  approved the merger and believes
it is in the best interests of Security and you, our shareholders.  Accordingly,
the Board unanimously recommends that you vote "FOR" the merger.

      We hope you can attend  the  special  meeting.  Whether or not you plan to
attend,  please  complete,  sign and date the enclosed  proxy card and return it
promptly  in the  enclosed  envelope.  If you do not return your card or vote in
person, the effect will be a vote against approval of the merger. You can revoke
your proxy by writing to  Security's  Assistant  Secretary  any time  before the
meeting or by attending the meeting and voting in person.

      We look forward to seeing you at the meeting.

                                    Sincerely yours,



                                    Danny R. May
                                    President and Chief Executive Officer


- --------------------------------------------------------------------------------
Neither  the  Securities  and  Exchange  Commission  nor  any  state  securities
regulators  have  approved  the F&M  common  stock to be issued in the merger or
determined  if this proxy  statement/prospectus  is  accurate or  adequate.  Any
representation to the contrary is a criminal offense.
- --------------------------------------------------------------------------------

      The date of this proxy  statement/prospectus is February 2, 1999 and it is
first being mailed to shareholders on or about February 2, 1999.


<PAGE>







                            SECURITY BANK CORPORATION
                               Manassas, Virginia
                            -------------------------

                    NOTICE OF SPECIAL MEETING OF SHAREHOLDERS
                          TO BE HELD ON MARCH 11, 1999
                            -------------------------

      A special  meeting of shareholders  of Security Bank  Corporation  will be
held on Thursday, March 11, 1999 at 8:00 a.m., at Security's main office located
at 8780 Centreville Road, Manassas, Virginia, for the following purposes:

      1. To  approve  the  Agreement  and  Plan of  Reorganization,  dated as of
November 25, 1998,  by and among  Security,  F&M  National  Corporation  and F&M
Bank-Northern Virginia and a related plan of merger, providing for the merger of
Security with and into F&M Bank-Northern  Virginia upon the terms and conditions
therein,  including,  among other things, that each issued and outstanding share
of Security  common stock will be exchanged  for shares of F&M common stock with
an  aggregate  market  value  equal to $17.25,  with cash being paid  instead of
issuing fractional shares. The merger agreement is enclosed as Appendix I to the
accompanying proxy statement/prospectus.

      2. To transact such other business as may properly come before the special
meeting or any adjournments or postponements of the meeting.

      The Board of Directors has fixed  February 1, 1999, as the record date for
the special  meeting.  Only  holders of record of Security  common  stock at the
close of business on that date are entitled to receive  notice of and to vote at
the special meeting or any adjournments or postponements of the meeting.

                                          By Order of the Board of Directors



                                          Harry J. Parrish II
                                          Secretary


February 2, 1999



      Please mark, sign, date and return your proxy promptly, whether or not you
plan to attend the special meeting.

      The  Board  of  Directors   of  Security   unanimously   recommends   that
shareholders vote for the merger agreement.



<PAGE>



                           QUESTIONS AND ANSWERS ABOUT THE MERGER


Q: Why is Security merging with F&M?

A: Both the Security  Board and the F&M Board  believe the merger is in the best
interests of their respective companies and will provide significant benefits to
you, and their  customers  and  employees.  The boards'  believe the merger will
permit the combined operations of Security and F&M Bank-Northern  Virginia to be
better positioned to be a stronger competitor in the highly competitive northern
Virginia banking market.  To review the background and reasons for the merger in
greater detail, see pages 13 through 17.

Q: What will I receive  in the  merger?

A: You will  receive  the  number  of shares of F&M  common  stock  that have an
aggregate  market  value equal to $17.25 in exchange  for each share of Security
common stock you hold.  The market value of F&M common stock will be its average
closing  price as  reported on the New York Stock  Exchange  for each of the ten
consecutive trading days ending on the fifth business day before the date of the
merger.

      Because the market  price of F&M common  stock  fluctuates,  the number of
shares you will receive in the merger  cannot be  determined at this time. As an
example,  however,  based on the $28.875  closing  price of F&M common  stock on
January 28, 1999,  you would have received  0.597 shares of F&M common stock for
each common  share of  Security  you own.  The most  recent  trade on the Nasdaq
SmallCap  Market of Security common stock occurred on January 14, 1999 at $16.00
per share.

Q:    What are the tax consequences of the merger to me?

A: We expect that the  exchange of shares by you  generally  will be tax-free to
you for federal  income tax purposes.  You will,  however,  have to pay taxes on
cash received for fractional  shares.  To review the tax  consequences to you in
greater detail, see pages 28 and 29.

Your tax consequences will depend on your personal situation. You should consult
your tax advisor for a full  understanding of the tax consequences of the merger
to you.

Q:    Will I receive dividends after the merger?

A:  For  more  than  56  consecutive  years,  F&M  has  paid  dividends  to  its
shareholders.  Security never paid a dividend on its common stock. F&M currently
pays a quarterly dividend of $0.195 per share. F&M expects that it will continue
to pay at least this amount in quarterly  dividends.  After the merger,  the F&M
Board will use its  discretion to decide  whether and when to declare  dividends
and in what amount.

Q:    What am I being asked to vote upon?

A: You are being asked to approve  the merger  agreement.  The merger  agreement
provides for the acquisition by F&M of Security through  Security's  merger into
F&M Bank-Northern  Virginia, a wholly-owned  subsidiary bank of F&M, and for the
exchange  of each of your  shares of  Security  common  stock for  shares of F&M
common stock that have an aggregate  market value of $17.25.  F&M  Bank-Northern
Virginia  will be the  surviving  company of the merger.  Approval of the merger
requires the affirmative vote of more than two-thirds of Security common stock.

      The Security Board  unanimously  approved and adopted the merger agreement
and recommends voting for the approval of the merger agreement.

Q:    What should I do now?

                                       1
<PAGE>

A: Just  indicate on your proxy card how you want to vote,  and sign and mail it
in the  enclosed  envelope  as soon as  possible,  so that your  shares  will be
represented at the meeting.

      If you sign and send in your  proxy  and do not  indicate  how you want to
vote,  your proxy will be voted in favor of the  merger.  If you do not sign and
send in your proxy or you abstain or if you do not vote in person,  it will have
the effect of a vote against the merger.

      The special  meeting will take place at 8:00 a.m. on  Thursday,  March 11,
1999.  You may attend the meeting  and vote your  shares in person,  rather than
voting by proxy.  In addition,  you may withdraw  your proxy up to and including
the day of the meeting by following the  directions on page 12 and either change
your vote or attend the meeting and vote in person.

Q: If my shares are held in "street  name" by my broker,  will my broker vote my
shares for me?

A: Your  broker  will vote your  shares of  Security  common  stock  only if you
provide instructions on how to vote. You should instruct your broker how to vote
your shares following the directions your broker provides.

If you do not provide instructions to your broker, your shares will not be voted
and this will have the effect of voting against the merger.

Q:    When is the merger expected to be completed?

A:    We are working to complete the merger by March 22, 1999.

Q:    Should I send in my stock certificates now?

A: No. After the merger is completed we will send you written  instructions  for
exchanging  your  Security  common  stock  certificates  for  F&M  common  stock
certificates.


                       WHO CAN HELP ANSWER YOUR QUESTIONS?
      If you want additional copies of this document,  or if you want to ask any
questions about the merger, you should contact:
                                 Dianne Kirkman
                               Assistant Secretary
                            Security Bank Corporation
                              8780 Centreville Road
                            Manassas, Virginia 20110
                            Telephone: (703) 361-1986

                                       2
<PAGE>



                                TABLE OF CONTENTS

                                                                           Page

Questions and Answers About the Merger.......................................1
Summary......................................................................4
The Special Meeting.........................................................11
The Merger..................................................................12
      Terms of the Merger...................................................12
      Background of and Reasons for the Merger..............................13
      Opinion of Financial Advisor..........................................17
      Effective Date........................................................22
      Surrender of Stock Certificates.......................................22
      Representations and Warranties; Conditions to the Merger..............23
      Regulatory Approvals..................................................23
      Business Pending the Merger...........................................24
      No Solicitation; Board Action.........................................24
      Waiver, Amendment and Termination.....................................25
      Resales of F&M Common Stock...........................................26
      Accounting Treatment..................................................26
      Interests of Certain Persons in the Merger............................26
      The Option Agreement..................................................27
      Material Federal Income Tax Consequences of the Merger................28
      Absence of Appraisal Rights...........................................29
      Certain Differences in Rights of Shareholders.........................29
      Expenses of the Merger................................................30
      Cautionary Statement Concerning Forward-Looking Statements............30
Market Prices and Dividends.................................................30
Security Bank Corporation...................................................32
      General...............................................................32
      History and Business..................................................32
      Competition...........................................................32
      Security Ownership of Management......................................33
Business of F&M ............................................................34
      History and Business..................................................34
      F&M's Acquisition Program.............................................35
Comparative Rights of Shareholders..........................................35
Description of F&M Capital Stock............................................39
Other Matters...............................................................40
Experts.....................................................................40
Legal Opinions..............................................................40
Where You Can Find More Information ........................................41

APPENDICES
      I Agreement and Plan of Reorganization  and Plan of Merger
     II Stock Option Agreement
    III Opinion of Scott &  Stringfellow,  Inc.
     IV Security's  1997 Annual Report to Shareholders
      V Security's  Quarterly  Report  on Form  10-QSB  for the  quarter  ended
        September 30, 1998

                                       3

<PAGE>



                                          SUMMARY


This    summary    highlights    selected    information    from   this    proxy
statement/prospectus  and  may  not  contain  all of  the  information  that  is
important  to you.  To  understand  the  merger  fully  and for a more  complete
description  of the legal terms of the merger,  you should read  carefully  this
entire document and the documents to which we refer you. See "Where You Can Find
More Information" on page 41.



Exchange  Ratio to be Number of Shares of F&M Common  Stock with Market Value of
$17.25 for each Security Share (page 12)

As a result of the merger, you will receive shares of F&M common stock that have
an  aggregate  market  value equal to $17.25 for each share of  Security  common
stock you own. The market value of F&M common stock will be its average  closing
price as reported on the New York Stock Exchange for each of the ten consecutive
trading days ending on the fifth business day before the date of the merger. The
number of shares  of F&M  common  stock  for  which  each  outstanding  share of
Security  common stock will be exchanged will be established by dividing  $17.25
by the F&M average closing price. This is the "exchange ratio."

Because the market  price of F&M common stock  fluctuates,  the number of shares
you will receive in the merger cannot be determined at this time. As an example,
however,  based on the $28.875  closing price of F&M common stock on January 28,
1999,  you would have received  0.597 shares of F&M common stock for each common
share of Security you own. The most recent trade on the Nasdaq  SmallCap  Market
of Security common stock occurred on January 14, 1999 at $16.00 per share.

No Federal Income Tax on Shares Received in Merger (page 28)

We expect that you will not  recognize  any gain or loss for federal  income tax
purposes as a result of the merger, except with respect to cash received instead
of any  fractional  share.  F&M's  attorneys  will issue a legal opinion to this
effect,  the form of which we have  included  as an exhibit to the  registration
statement filed with the Securities and Exchange Commission for the shares to be
issued in the  merger.  Tax matters  are  complicated,  and tax results may vary
among  shareholders.  We urge  you to  consult  with  your  own tax  advisor  to
understand fully how the merger will affect you.

F&M Dividend Policy Following the Merger

F&M currently pays quarterly  dividends of $0.195 per share of common stock. F&M
expects  that  it  will  continue  to pay at  least  this  amount  in  quarterly
dividends,  but may change  that  policy  based on  business  conditions,  F&M's
financial condition and earnings and other factors.

F&M's next  dividend is payable  January 26, 1999 to  shareholders  of record on
December 24, 1998.  F&M  anticipates  that its next  quarterly  dividend will be
payable on or about April 27, 1999,  with a record date that will be on or about
March 26,  1999.  Accordingly,  if the merger  takes place  before the  dividend
record date,  which we expect,  you will be entitled to receive  that  dividend.
However,  no  assurance  can be given that the merger will take place before the
March dividend record date.

Security Board Recommends Shareholder Approval (page 12)

The Security Board unanimously approved the merger and the merger agreement. The
Board  believes that the merger is fair to you and in your best  interests.  The
Security  Board  recommends  that you vote "FOR"  approval  of the  merger.  The
Security Board believes that, as a result of the merger,  Security  shareholders
will  have  less  financial  risk  and  will  experience   greater  stock  value
appreciation than they would if Security remained independent.

                                       4

<PAGE>

Exchange Ratio Fair to Shareholders, According to Investment Bank (page 17)

Scott &  Stringfellow,  Inc. has given an opinion to the Security Board that the
exchange ratio is fair from a financial point of view to Security  shareholders.
A copy  of  the  fairness  opinion,  setting  forth  the  information  reviewed,
assumptions   made  and   matters   considered,   is   attached  to  this  proxy
statement/prospectus  as  Appendix  III.  We  encourage  you to read the opinion
carefully.  If the  merger  is  completed,  Scott  &  Stringfellow  will be paid
$100,000 in exchange for its advice and for providing its fairness opinion.

Meeting to be Held March 11, 1999 (page 11)

The special  shareholders'  meeting will be held on Thursday,  March 11, 1999 at
8:00 a.m. at Security's main office located at 8780 Centreville Road,  Manassas,
Virginia.

The Companies (pages 32 and 34)

F&M National Corporation
9 Court Square
Winchester, Virginia  22601
(540) 665-4200

F&M is a multi-bank holding company headquartered in Winchester,  Virginia.  F&M
has nine  subsidiary  banks that operate 120 banking  offices in the  Shenandoah
Valley of Virginia, central Virginia, the eastern panhandle of West Virginia and
the  Washington  D.C.  metropolitan  area. At September 30, 1998,  F&M had total
assets of $2.8 billion,  total deposits of $2.3 billion and total  shareholders'
equity of  $281.4  million.  F&M  common  stock is listed on the New York  Stock
Exchange under the symbol "FMN."

Security Bank Corporation
8780 Centreville Road
Manassas, Virginia  20110
(703) 361-1986

Security is a community bank  headquartered in Manassas,  Virginia that operates
two banking  offices in the Manassas  area. At September 30, 1998,  Security had
total  assets  of $60.4  million,  total  deposits  of $51.4  million  and total
shareholders' equity of $8.1 million. Security common stock trades on the Nasdaq
SmallCap Market under the symbol "SecurityM."

The Merger (page 12)

The merger agreement provides that Security will merge into a subsidiary bank of
F&M, F&M Bank-Northern Virginia,  which will be the surviving corporation of the
merger. The merger agreement and the related plan of merger are attached to this
proxy  statement/prospectus  as Appendix I. We encourage  you to read the merger
agreement, as it is the legal document that governs the merger.

Two-Thirds Security Shareholder Vote Required (page 11)

Approval of the merger requires the affirmative  vote of more than two-thirds of
the outstanding  shares of Security common stock. Your failure to vote will have
the effect of a vote  against  approval of the  merger.  Certain  directors  and
executive  officers of Security own about 20.48% of the shares  entitled to vote
at the meeting, and we expect them to vote their shares in favor of the merger.

Brokers  who hold  shares of Security  common  stock as  nominees  will not have
authority  to vote such shares with  respect to the merger  unless  shareholders
provide voting instructions.

The merger does not require the approval of F&M's shareholders.

Record Date Set at February 1, 1999; One Vote Per Share of Security Stock
(page 11)

You are entitled to vote at the special  meeting if you owned shares of Security
common stock at the close of business on February 1, 1999.  On February 1, 1999,
there were 978,420 shares of Security common stock outstanding.

                                       5
<PAGE>

You will have one vote at the  meeting  for each share you owned on  February 1,
1999.


Monetary Benefits to Management in the Merger (page 26)

When considering the  recommendation  of the Security Board, you should be aware
that some  Security  directors  and officers  have  interests in the merger that
differ from the interests of other Security shareholders. Security directors and
officers hold stock options to acquire an aggregate of 77,100 shares of Security
common stock at exercise  prices ranging from $8.00 to $13.12 per share.  If not
exercised  before the merger,  the options  will be  converted  into  options to
acquire shares of F&M common stock.

In  connection  with the  merger,  Mr.  Danny R. May,  the  President  and Chief
Executive Officer of Security, will receive payments totaling $156,661 under his
existing  employment  agreement with Security.  Mr. May's  employment  agreement
provides  for such a severance  allowance  if there is a change of  ownership or
control of Security and his job duties are substantially  reduced. His agreement
also provides that F&M must continue for a two year period his medical and other
insurance  coverage.  Mr. May has accepted F&M's offer to join F&M Bank-Northern
Virginia as a senior vice president. He will not have an employment or severance
agreement with F&M.

Also,  four  directors of Security  will become  directors of F&M  Bank-Northern
Virginia  and will each earn a fee of $225 for each board  meeting  they attend;
the  other  Security   directors  will  be  offered  positions  on  F&M-Northern
Virginia's  advisory  board and will be paid a  quarterly  fee of $100 for their
services.

The Security Board was aware of these and other  interests and  considered  them
before approving and adopting the merger agreement.

Conditions that Must be Satisfied for the Merger to Occur (page 23)

The following conditions must be met for us to complete the merger:

o     approval of the merger by Security shareholders;

o     approval from the New York Stock Exchange for the listing of the F&M
      common stock to be issued;

o     the continuing effectiveness of F&M's registration statement filed with
      the Securities and Exchange Commission;

o     receipt by F&M of a letter from its accountants  stating  that the  merger
      qualifies for pooling of interests accounting treatment (however, this is
      not a condition  to the merger if F&M takes any action to prevent the
      merger from so qualifying); and

o     receipt of a legal opinion concerning the tax consequences of the merger.

We cannot  complete  the merger  unless we obtain the  approval  of the Board of
Governors  of the Federal  Reserve  System and the  Virginia  State  Corporation
Commission. On January 12 and 13, 1999, applications were filed with the Federal
Reserve and the Virginia State Corporation  Commission.  While we cannot predict
whether or when we will  obtain all  required  regulatory  approvals,  we see no
reason why the approvals will not be obtained in a timely manner.

Unless  prohibited  by law,  either  Security  or F&M  could  elect  to  waive a
condition that has not been satisfied and complete the merger anyway.

Termination of the Merger Agreement (page 25)

We can agree to terminate  the merger  agreement at any time without  completing
the  merger.  Either  company may also  terminate  the merger  agreement  in the
following circumstances:

                                       6

<PAGE>

o  the merger is not completed on or before September 30, 1999; or

o  if any  event  occurs  which  renders  impossible,  in a  material  way,  the
   satisfaction by one company of one or more of the conditions described above,
   unless the other company waives such satisfaction.

Effective Date Expected to be March 22, 1999 (page 22)

The merger will become  effective at the date and time stated on the certificate
of merger issued by the Virginia State Corporation Commission. We anticipate the
merger will take place on or about March 22, 1999.

Distribution of Stock Certificates (page 22)

After the merger, you will need to exchange your Security stock certificates for
certificates  representing  F&M common stock.  F&M will have its exchange  agent
mail to you  instructions on how to exchange your shares.  After turning in your
certificates to the exchange agent, you will be mailed certificates representing
shares of F&M common stock.

Option Agreement (page 27)

To induce F&M to agree to the merger,  and to discourage  other  companies  from
acquiring  Security,  F&M was granted an  irrevocable  option to  purchase  from
Security up to 191,300 shares of Security  common stock at a price of $11.00 per
share.

F&M may exercise the option only if another party attempts to acquire control of
Security. As of the date of this proxy  statement/prospectus,  we do not believe
that has  occurred.  The  stock  option  agreement  is  attached  to this  proxy
statement/prospectus as Appendix II.

F&M to Use Pooling of Interest Accounting Treatment (page 26)

We expect that the merger will be accounted for as a pooling of interests.  This
will  enhance  future  earnings  of F&M by  avoiding  the  creation  of goodwill
relating  to the merger and enable  F&M to also  avoid  charges  against  future
earnings resulting from amortizing  goodwill.  This accounting method also means
that after the merger  F&M will  report  financial  results as if  Security  had
always been combined with F&M.

No Appraisal Rights (page 29)

Under  Virginia law, you have no right to an appraisal of the fair value of your
shares in connection with the merger.

                                       7

<PAGE>

Market Prices

      This table  provides  the price per share of F&M common stock and Security
common  stock based on the last  reported  sales  prices per share of F&M common
stock on the NYSE and of Security  common stock on the Nasdaq SmallCap Market on
November 9, 1998,  the last business day before the public  announcement  of the
merger, and on January 28, 1999, the last practicable date before the mailing of
this proxy statement/prospectus:

                                   Market Price Per Share
                              ----------------------------------
                                    F&M            Security
                                Common Stock     Common Stock

      November 9, 1998.....        $29.6875        $11.50
      January 28, 1999.....        $28.875         $16.00

      If the merger had been  effective on November 9, 1998,  the exchange ratio
would have been 0.581  shares of F&M common  stock per share of Security  common
stock,  using the closing  price for F&M common stock on the NYSE on November 9,
1998 of $29.6875 as the average  closing price. If the merger had been effective
on January 28,  1999,  the  exchange  ratio would have been 0.597  shares of F&M
common stock per share of Security common stock,  using the closing price of F&M
common stock on January 28, 1999 of $28.875 as the average closing price.

      We urge you to obtain current market  quotations for F&M common stock.  We
expect  that the market  price of F&M common  stock  will  fluctuate  and likely
change  before the  exchange  ratio is fixed and the merger is  completed.  As a
result,  the number of shares of F&M common  stock that you will  receive in the
merger may increase or decrease  prior to the date of the merger.  However,  the
aggregate value of F&M common stock received by you will still equal $17.25. See
"Market Prices and Dividends" on page 30 for more information.

Comparative Per Share Information

      We have summarized below the per share  information for our companies on a
historical,  pro forma  combined  and  equivalent  basis.  You should  read this
information in  conjunction  with our  historical  financial  statements and the
related notes contained in the annual and quarterly  reports and other documents
that we have filed with the Securities and Exchange Commission (for F&M) and the
Federal  Reserve (for  Security).  See "Where You Can Find More  Information" on
page 41. The F&M pro forma  information gives effect to the merger accounted for
as a pooling of  interests,  assuming  that 0.597 shares of F&M common stock are
issued for each outstanding share of Security common stock. The assumed exchange
ratio is based on the closing  price of F&M common  stock of $28.875 as reported
on the  NYSE  on  January  28,  1999  as the  average  closing  price.  Security
equivalent  share amounts are calculated by multiplying  the pro forma basic and
diluted  earnings per share,  historical per share dividend and historical  book
value, by the assumed exchange ratio of 0.597 shares of F&M common stock so that
the per share amounts equate to the respective  values for one share of Security
common stock.

      You should not rely on the pro forma  information  as being  indicative of
the  historical  results  that we would have had if we had been  combined or the
future results that we will experience after the merger,  nor should you rely on
the  nine-month  information  as being  indicative  of results  expected for the
entire year.

                                       8
<PAGE>



                                                              Year ended
                                    Nine months ended        December 31,
                                      September 30,   --------------------------
                                           1998          1997    1996     1995
                                           ----          ----    ----     ----
Earnings Per Common Share
  Basic:
  Security historical..............     $  0.27        $ 0.55  $  0.84  $  0.36
  F&M historical...................        1.23          1.51     1.41     1.24
  Pro forma combined...............        1.21          1.50     1.41     1.23
  Security pro forma equivalent....        0.72          0.89     0.84     0.74

  Diluted:
  Security historical..............     $  0.26        $ 0.54  $  0.83  $  0.36
  F&M historical...................        1.22          1.50     1.40     1.23
  Pro forma combined...............        1.19          1.48     1.40     1.22
  Security pro forma equivalent....        0.71          0.89     0.84     0.73

Cash Dividends Declared Per Common
Share
  Security historical..............     $   --         $   --  $    --  $    --
  F&M historical...................        0.57          0.73     0.69     0.61
  Pro forma combined...............        0.57          0.73     0.69     0.61
  Security pro forma equivalent....        0.34          0.44     0.41     0.36
`
                                      September 30,           December 31,
                                           1998                   1997
                                           ----                   ----
Book Value Per Common Share
  Security historical..............     $  8.44                 $  8.14
  F&M historical...................       12.85                   12.10
  Pro forma combined...............       12.88                   12.14
  Security pro forma equivalent....        7.69                    7.25

Selected Financial Data

      We are  providing  the  following  information  to help  you  analyze  the
financial  aspects of the  merger.  We derived  this  information  from  audited
financial  statements for 1993 through 1997 and unaudited  financial  statements
for the nine  months  ended  September  30,  1998.  This  information  is only a
summary,  and you should read it in conjunction  with our  historical  financial
statements and the related notes  contained in the annual and quarterly  reports
and  other  documents  that we have  filed  with  the  Securities  and  Exchange
Commission (for F&M) and the Federal Reserve (for Security).  See "Where You Can
Find  More  Information"  on page 41.  You  should  not  rely on the  nine-month
information as being indicative of results expected for the entire year.

                                       9

<PAGE>




                     F&M - HISTORICAL FINANCIAL INFORMATION
              (Dollars in thousands, except for per share amounts)

<TABLE>
<CAPTION>

                          Nine Months
                             Ended
                         September 30,                      Year Ended December 31,
                       -----------------  --------------------------------------------------------
                       1998       1997        1997        1996        1995        1994        1993
                       ----       ----        ----        ----        ----        ----        ----
<S>                <C>         <C>        <C>         <C>         <C>         <C>         <C>
Net interest
income............ $  87,002   $  82,543  $  110,391  $  102,703  $   96,909  $   91,391  $   79,501
Net income........    26,829      24,539      32,804      30,902      27,095      25,483      22,267
Diluted earnings
  per share.......      1.22        1.11        1.50        1.40        1.23        1.15        1.05
Cash dividends
  per share.......      0.57        0.54        0.73        0.69        0.61        0.54        0.58
Book value per
share.............     12.85       11.74       12.10       11.24       10.76        9.68        9.69
Total assets...... 2,759,056   2,599,689   2,677,935   2,458,431   2,346,358   2,149,817   2,054,951
Shareholders'
equity............   281,365     253,272     264,851     246,052     236,066     207,931     200,463
</TABLE>



                  SECURITY - HISTORICAL FINANCIAL INFORMATION
              (Dollars in thousands, except for per share amounts)

                     Nine Months
                        Ended
                    September 30,              Year Ended December 31,
                   -----------------  ------------------------------------------
                      1998     1997     1997     1996     1995     1994     1993
                      ----     ----     ----     ----     ----     ----     ----

Net interest
income............ $ 1,901  $ 1,683  $ 2,293  $ 2,017  $ 1,743  $ 1,475  $ 1,423
Net income........     256      378      526      641      202      136      219
Diluted earnings
  per share.......    0.26     0.39     0.54     0.83     0.36     0.25     0.46
Cash dividends
   per share......      --       --       --       --       --       --       --
Book value per
share.............    8.44     7.99     8.14     7.57     6.79     6.11     6.11
Total assets......  60,436   54,898   56,358   49,771   44,278   40,125   38,636
Shareholders'
equity............   8,116    7,657    7,800    7,251    3,765    3,385    3,166

Recent Developments

      F&M. For the year ended  December  31, 1998,  net income for F&M was $36.5
million or $1.65 per share,  assuming  dilution,  compared to $32.8 million,  or
$1.50 per share, assuming dilution, for the same period in 1997. At December 31,
1998,  F&M had total  assets of $2.889  billion,  an  increase  of 7.9% over the
$2.678 billion in total assets at December 31, 1997. Total loans at December 31,
1998 increased to $1.693  billion,  up 2.69% from the $1.649 billion total loans
at December  31,  1997.  Deposits  at December  31,  1998,  increased  to $2.436
billion, up from $2.275 billion at December 31, 1997.

      Security.  For the year ended  December 31, 1998,  net income for Security
was $-20  thousand  or $-0.02 per share,  assuming  dilution,  compared  to $526
thousand, or $0.54 per share, assuming dilution, for the same period in 1997. At
December 31, 1998,  Security had total assets of $61.2  million,  an increase of
8.5% over the $56.4 million in total assets at December 31, 1997. Total loans at
December 31, 1998  increased to $34.3  million,  up 5.9% from the $32.4  million
total loans at December  31, 1997.  Deposits at December 31, 1998,  increased to
$52.4 million, up from $47.7 million at December 31, 1997.

                                       10

<PAGE>

                               THE SPECIAL MEETING

Date, Place and Time

      We are furnishing this proxy statement/prospectus and the enclosed form of
proxy to you in  connection  with the  solicitation  of  proxies by the Board of
Directors of Security for use at a special  meeting of shareholders of Security.
The special  meeting  will be held at  Security's  main  office  located at 8780
Centreville Road, Manassas, Virginia on Thursday, March 11, 1999 at 8:00 a.m.

Purpose of the Special Meeting

      The  purpose  of the  special  meeting  is to  consider  and vote upon the
Agreement  and Plan of  Reorganization,  dated as of November 25,  1998,  by and
among Security, F&M and F&M Bank-Northern-Virginia and a related plan of merger.
The merger agreement is attached to this proxy  statement/prospectus as Appendix
I and is incorporated in this document by this reference.

Record Date

      Only  shareholders of record at the close of business on February 1, 1999,
the record date, are entitled to notice of and to vote at the special meeting or
any  adjournment  thereof.  At the close of business on February 1, 1999,  there
were  978,420  shares  of  Security  common  stock  issued  outstanding  held by
approximately 645 shareholders of record.

Vote Required

      Each share of  Security  common  stock  outstanding  on  February 1, 1999,
entitles the holder to cast one vote upon each matter properly  submitted at the
special  meeting.  Approval of the merger requires the  affirmative  vote of the
holders  of  more  than  two-thirds  of the  shares  of  Security  common  stock
outstanding as of February 1, 1999, in person or by proxy.

      Brokers who hold shares of Security common stock as nominees will not have
discretionary  authority to vote such shares in the absence of instructions from
the beneficial  owners of those shares.  Any shares of Security common stock for
which a broker has  submitted  an  executed  proxy but for which the  beneficial
owner of the  shares  has not given  instructions  on voting to such  broker are
referred to as "broker  non-votes."  This is important  because  abstentions and
broker  non-votes will be counted for purposes of establishing the presence of a
quorum at the  meeting  and also will be  counted  and will have the effect of a
vote against the proposal to approve the merger.

      Because  approval of the merger requires the affirmative vote of more than
two-thirds of the outstanding  shares of Security common stock,  abstentions and
broker  non-votes  will have the same effect as a vote  against  approval of the
merger agreement.  Accordingly,  the Security board urges you to complete,  date
and sign the accompanying proxy and return it promptly in the enclosed envelope.

      As of February 1, 1999,  directors and executive  officers of Security and
their affiliates,  beneficially owned an aggregate of 200,378 shares of Security
common stock,  or 20.48% of the shares of Security  common stock  outstanding on
such date, not counting shares that may be acquired  pursuant to the exercise of
stock options.  We currently expect that all directors and executive officers of
Security will vote their shares of Security common stock in favor of the merger.

                                       11
<PAGE>



Voting and Revocation of Proxies

      A form of proxy is enclosed with this proxy statement/prospectus.  You are
requested to complete, date and sign the form of proxy and return it promptly to
Security in the enclosed envelope.  If a proxy is properly executed and returned
in time  for  voting,  it will be  voted in  accordance  with  the  instructions
indicated on the proxy. If a proxy is signed and returned without indicating any
voting  instructions,  shares of Security common stock  represented by the proxy
will be voted "FOR" the merger and in the discretion of the individuals named as
proxies as to any other  matter that may come before the special  meeting or any
adjournment or postponement  thereof including,  among other things, a motion to
adjourn or postpone the special  meeting to another time and/or  place,  for the
purpose of soliciting  additional proxies or otherwise.  No proxy which is voted
against  the  merger  will  be  voted  in  favor  of  any  such  adjournment  or
postponement.

      A proxy may be  revoked at any time  before it is voted.  You may revoke a
proxy by giving  written  notice of  revocation  to Security,  by executing  and
delivering a substitute  proxy to Security or by attending  the special  meeting
and voting in person.  If you wish to revoke a proxy by written  notice,  please
mail the notice so that it is received on or before March 10, 1999, to Assistant
Secretary, Security Bank Corporation, 8780 Centreville
Road, Manassas, Virginia 20110.

Solicitation of Proxies

      Security   will  bear  the  costs  of  this   solicitation   of   proxies.
Solicitations  may be  made by  mail,  telephone,  telegraph  or  personally  by
directors,  officers  and  employees  at  Security,  none of whom  will  receive
additional  compensation  for performing such services.  F&M will pay all of the
expenses of printing and mailing of this proxy statement/prospectus.

Recommendation

      The board of  directors of Security  has  unanimously  approved the merger
agreement and the transactions contemplated thereby. The Security board believes
that the proposed  transaction  is fair to and in the best interests of Security
and its shareholders.  The Security board  unanimously  recommends that you vote
"FOR" approval of the merger.

                                   THE MERGER

      The  following is a summary  description  of the  material  aspects of the
merger. This description does not purport to be complete and is qualified in its
entirety by reference to the appendices  hereto,  including the merger agreement
and  the  plan of  merger,  which  are  attached  as  Appendix  I to this  proxy
statement/prospectus. We urge you to read the appendices in their entirety.

Terms of the Merger

      The  merger   agreement   provides  that  Security  will  merge  into  F&M
Bank-Northern  Virginia.  F&M  Bank-Northern  Virginia  will  be  the  surviving
corporation  of the merger.  At the date and time the merger is  effected,  each
outstanding  share of Security  common stock will be converted into the right to
receive  shares of F&M common stock  having an aggregate  market value of $17.25
per share.

      The market value of F&M common stock will be its average  closing price as
reported on the NYSE for each of the ten consecutive  trading days ending on the
fifth  business  day prior to the  effective  date of the merger.  The number of
shares of F&M common stock that will be exchanged for each outstanding  share of
Security common stock will then be established by dividing $17.25 by the average
closing  price of F&M  common  stock.  This  will be the  "exchange  ratio."  No
fractional  shares of F&M common  stock will be issued.  Rather,  cash,  without
interest,  will be paid instead of any  fractional  share  interest based on the
average  closing price of F&M common stock.  The exchange ratio will be adjusted
to  reflect  any  stock  split,  stock  dividend,  recapitalization  or  similar
transaction with respect to F&M common stock.

                                       12

<PAGE>

      There is no  minimum  number of shares of F&M  common  stock  that must be
issued in  connection  with the merger.  Security has no right to terminate  the
merger or to obtain an adjustment of the  consideration to be received solely as
a result of a decrease in the exchange ratio below a specified level. Similarly,
there is no maximum  number of shares of F&M common stock which may be issued in
connection  with the  merger,  and F&M has no right to  terminate  the merger or
obtain an adjustment in the  consideration  to be paid to you solely as a result
of an increase in the  exchange  ratio above a specified  level.  We can give no
assurance as to the average closing price of F&M common stock for the merger, or
the actual exchange ratio at which your shares are exchanged as of the effective
date,  or as to the market or trading  value of F&M common stock  following  the
effective date of the merger.

Background of and Reasons for the Merger

      Background  of the  Merger.  In late  1997 and  early  1998,  the board of
directors of Security  began  considering  the  strategic  options  available to
Security to build long-term shareholder value. Because Security's assets had not
increased at the rate  anticipated  by the board,  Security had excess  capital.
Furthermore,  Security's  earnings  had not  increased  as  anticipated  either.
Accordingly,  the  board was  concerned  that  Security  would  have  difficulty
generating  and  sustaining a return on capital  comparable to its peer group of
banks and sufficient to build long-term  shareholder  value.  The board reviewed
several  ways to utilize  the excess  capital and improve the return on capital,
including  opening  branches,   investing  in  technological   improvements  and
repurchasing   outstanding   shares.  The  board  also  discussed  the  relative
advantages and  disadvantages  of affiliating  with another banking  institution
through an  acquisition,  a "merger of equals" or a sale to, or merger  with,  a
larger institution.

      The board also realized that changes in the banking industry would make it
difficult for a bank of Security's  size to compete,  particularly in the highly
competitive  northern Virginia banking market.  These changes included the trend
towards  consolidation,  more focus on  fee-based  products,  changing  customer
preferences and the emergence of new technologies.  The board also believed that
transforming  Security to be competitive in this changing banking industry would
require significant costs and risk.

       In mid-1998, Security was approached and had preliminary discussions with
a community bank about a possible  merger that resulted in Security  receiving a
merger  offer.  The  board  selected  the  investment  banking  firm of  Scott &
Stringfellow  to assist in analyzing the merger and  conducting  due  diligence.
After extensive discussion,  analysis of the merger and further study, the board
determined  that a merger with this community bank was not in the best interests
of Security's shareholders.

       This  proposed  transaction,  however,  further  intensified  the board's
concern about Security's  future and its ability to build long-term  shareholder
value.  The board decided that this issue would be the major focus of Security's
strategic planning retreat to be held in late October 1998.

      As  background  for the  strategic  planning  retreat,  and  based  on its
previous  performance,  the board  asked  Scott &  Stringfellow  to analyze  the
strategic  alternatives  available  to Security to build  long-term  shareholder
value.  The board asked that this  analysis  include  consideration  of Security
remaining  independent,  merging with another bank and branching and/or engaging

                                       13

<PAGE>

in non-traditional  financial services.  On September 10, 1998,  representatives
from Scott & Stringfellow met with the board and reviewed the available options.
Scott &  Stringfellow  concluded that it was unlikely that Security would find a
suitable  merger-of-equals  partner that would help increase  shareholder  value
immediately,  but  Security  had  excellent  prospects  of merging with a larger
community bank or regional bank that would result in increased shareholder value
immediately  and  provide  long-term  value  as  well.  In  addition,   Scott  &
Stringfellow discouraged Security from acquiring a mortgage company, engaging in
non-traditional  financial  services or opening  another  branch until  Security
could make its Sudley branch  profitable.  The board  intended to discuss all of
these possibilities at its strategic planning retreat.  However, the retreat did
not take place  because of board  meetings  held in October 1998 with respect to
merger offers Security had received.

      On September 22, 1998, a representative  from another  investment  banking
firm  met  with  the  Security  executive  committee  to  provide  its  views on
Security's opportunities.  At that meeting, the investment banker suggested that
Security  consider  a  strategic  merger  with a specific  out-of-state  banking
organization.  The  committee  expressed  interest and following the meeting the
investment   banking  firm  contacted  the  out-of-state   bank.   Subsequently,
representatives   of  the  Security  board  met  with   representatives  of  the
out-of-state  bank.  Ultimately,  this bank  made a verbal  offer at a price the
investment banker considered to be too low for consideration.

      In early 1998, Mr. Danny R. May,  President and Chief Executive Officer of
Security  asked Mr.  Charles E. Curtis,  Vice Chairman and Chief  Administrative
Officer of F&M, who Mr. May knew very well,  what a regional  organization  like
F&M would pay to acquire a bank like  Security.  Mr. May made this  inquiry  for
planning  purposes  only and no further  discussions  ensued  with F&M until ten
months later.  In  mid-October  1998, F&M expressed an interest in a merger with
Security, and as a result of discussions with Scott & Stringfellow, F&M extended
a written  offer,  by letter dated October 15, 1998, to affiliate with Security.
F&M  offered to acquire  100% of the  outstanding  stock of  Security at a fixed
price,  payable in F&M common stock. Mr. May arranged a meeting at the office of
Security's  Chairman,  Mr. John O.  Gregory,  on October 16th.  Messrs.  May and
Gregory  together with Mr. Danny G. Snow,  Vice Chairman of the Security  board,
met,  reviewed  the letter in detail and agreed that it should be presented at a
meeting of all of the  directors  for  consideration.  Mr.  May talked  with the
remaining board members by telephone that weekend and scheduled a meeting.

      On October 23, 1998, a special board meeting was held to review the offers
from F&M and the out-of-state bank. The board consulted by telephone  conference
call with a  representative  of the  investment  banking firm through  which the
out-of-state  bank  had made a  verbal  offer.  A  representative  of this  firm
indicated  that,  in his  opinion,  he thought  the  out-of-state  bank would be
willing  to  increase  the value of its  offer.  The  board  then  consulted  by
telephone conference call with representatives of Scott & Stringfellow.  In that
conference  call,  Scott &  Stringfellow  furnished  the board with an  in-depth
analysis of F&M and five other potential merger  candidates,  which included the
out-of-state bank.

      At the  conclusion of the  conference  calls,  the board  employed Scott &
Stringfellow  to study both the F&M and  out-of-state  bank offers and  evaluate
other potential alternatives available to Security, including having discussions
with or studying the possibility of merging with other banking  organizations or
remaining independent.

      On November 4, 1998, the board held another meeting to discuss  Security's
options.  Scott &  Stringfellow  presented  to the board an  analysis of the two
offers, one from F&M and one from the out-of-state bank, an analysis of Security
merged with several  other banking  organizations  and an analysis of Security's
prospects if it remained independent. In addition, representatives from F&M made
a brief  presentation to the board discussing F&M, its offer, and the advantages

                                       14
<PAGE>

of an affiliation with F&M.  Similar  discussions had already been held with the
out-of-state  bank. The board engaged in an extensive  discussion  comparing the
offers by F&M and the out-of-state bank, as well as other potential alternatives
available to Security.  At this meeting, the board employed Scott & Stringfellow
as Security's  exclusive  investment  banker to negotiate  with both F&M and the
out-of-state bank.

      On November 6, 1998, Scott & Stringfellow  attended another meeting of the
board. Scott & Stringfellow again presented a thorough analysis of the offers by
F&M and the out-of-state bank, as well as a report on the financial  performance
of each  institution.  Based upon discussions Scott & Stringfellow had with both
F&M and the out-of-state  bank,  Scott & Stringfellow  presented the terms under
which both F&M and the out-of-state  bank indicated each would acquire Security,
including the respective  financial  offers and the integration of Security into
the respective companies. At that time, F&M had indicated a willingness to pay a
fixed dollar  amount of $17.00 per share in F&M common stock.  The  out-of-state
bank had revised the  structure of its offer to a fixed dollar  amount of $17.75
per share payable in common stock, but with certain contingencies.

      Unlike the F&M offer,  the  out-of-state  bank's  offer  contained a fixed
maximum and minimum number of shares that could be issued in the event its stock
falls  below or rises  above the  price  limits.  Accordingly,  the value of the
out-of-state bank's offer could fluctuate and be more or less than $17.75 to the
extent its stock price was outside  the price  limits  leading up to the closing
date when the exchange ratio would be established.

      Scott & Stringfellow  discussed with the board the volatility of the stock
market over the preceding few months, reports from several stock market analysts
and economists  expressing concern over the possible continued volatility in the
stock market and the direction of the United States economy in general,  and the
board concluded that the out-of-state bank's offer involved a significantly high
level of market risk. Based on the information, the board was concerned with the
uncertainty over whether the actual value of the transaction  would end up being
less than $17.75 per share,  or even less than the F&M offer,  when the exchange
ratio was  subsequently  established at the closing.  In making this assessment,
the board also took into  consideration  the fact that the then  current  market
price of the out-of-state  bank's stock had to fall only seven percent before it
dropped below the low end of the price limits and that several  other  announced
bank mergers had been recently  terminated  due to a decline in the stock market
generally and bank stocks  specifically.  In addition,  the board  discussed and
considered the  compatibility  of Security and F&M,  including the similarity of
their  community  bank  operations and products and customer  orientations.  The
board  recognized  that the bank  resulting  from the merger  would have over 30
offices in northern Virginia to serve Security's existing  customers,  and would
possess the financial  resources and economies of scale to compete  effectively.
The board  decided to  continue  negotiations  with F&M due in large part to the
board's serious  concern over the market risk  associated with the  out-of-state
bank's offer.

      The board approved a motion to authorize  Scott & Stringfellow  to request
$17.50 in F&M common stock.  Security further authorized Scott & Stringfellow to
negotiate an offer of no lower than $17.25 per share.  The board understood that
F&M would pay for Security's stock with registered shares of F&M common stock.

      On November 6, 1998,  Scott &  Stringfellow  called Mr. May to report that
F&M had agreed to $17.25 per share payable in F&M common  stock,  subject to the
completion  of a due  diligence  investigation.  Mr. May  notified Mr. Snow that
night,  as Mr. Snow was leaving the country the next morning.  The next day, Mr.
May notified all other  directors by telephone that F&M had agreed to $17.25 per
share payable in F&M common stock.

      On November 10, 1998,  F&M completed its due  diligence  investigation  of
Security.  Also, on November 10, 1998, the board held another meeting that Scott
& Stringfellow and legal counsel for Security attended. Scott & Stringfellow and

                                       15

<PAGE>

counsel presented the board with an agreement in principle  prepared by F&M. The
board,  legal counsel and Scott & Stringfellow  carefully reviewed the agreement
and asked for certain  changes.  These changes were  discussed  with F&M and all
changes  were made.  Scott &  Stringfellow  then again  reviewed  the  financial
considerations  associated  with the F&M offer and indicated  that the offer was
fair from a financial point of view to Security's  shareholders.  The board then
unanimously  approved the agreement and the related stock option agreement.  The
press release was issued by F&M at approximately 5:00 p.m.

      Immediately  thereafter,  Mr.  May met  with  all  Security  officers  and
announced  the intent to merge with F&M.  This meeting was followed by a meeting
with  the  full  staff  of  Security  and the  proposed  affiliation  was  again
announced.  The staff was  especially  appreciative  that they were assured they
would be  offered  positions  at  comparable  salaries  with  F&M  Bank-Northern
Virginia.

      On November 12,  1998,  Security  held a regular  board  meeting.  Mr. May
reported  that the  definitive  merger  agreement  with F&M was being drafted by
F&M's  counsel  and  would be  reviewed  by  Security's  counsel  prior to being
submitted to the Security board for approval.

      On November 24, 1998, the board held another  special board  meeting.  The
board selected Messrs. Snow, Parrish,  DeBell and Martin, based on seniority, to
serve on the board of F&M  Bank-Northern  Virginia.  Legal  counsel  joined  the
meeting  and the board  reviewed  the merger  agreement.  The board  unanimously
approved the document, subject to minor changes agreed to by Mr. Gregory and Mr.
May after consulting legal counsel.  On November 25, 1998, F&M signed the merger
agreement.  Due to the intervening  Thanksgiving holiday and travel schedules of
Security  board  members,  Mr.  Gregory  signed the merger  agreement on Monday,
November 30, 1998.

      Security's  Reasons for the Merger.  The Security board discussed both the
financial  aspects  of  the  proposed  merger,  including  the  benefits  of the
transaction to Security's  shareholders,  as well as the potential effect of the
merger on Security's management, employees, customers and the community in which
Security  is  located,   without  assigning  relative  weights  to  the  various
constituencies  and  factors  considered.  Relying  on the  opinion  of  Scott &
Stringfellow,  and after  consultation  with  management and legal counsel,  the
Security board determined that the merger is fair from a financial point of view
to, and is in the best interests of, Security and its shareholders.  In reaching
this determination, the board considered the following:

o     The board was concerned with ways to improve Security's financial
      performance and, prior to receiving the offer from F&M, had begun to study
      options to utilize Security's  excess  capital in a manner  that could be
      expected  to  maintain or enhance  shareholder  returns. Possible uses for
      the capital included,  but were not limited to,  opening  branches,
      investing in  technological  innovation, or affiliating  with a bank of
      similar size.  Security asked Scott & Stringfellow to analyze the changes
      in the industry,  the industry's financial  performance,  the trend to
      industry consolidation and the competitive  environment of its market in
      northern  Virginia.  Scott &  Stringfellow  issued a report and discussed
      it with the  board  indicating  that  Security did not have the critical
      mass to be competitive  in the  northern  Virginia  market and that the
      recommended  option would be to consider an affiliation.

o     The  compatibility  of Security and F&M,  including  community  bank
      operating  philosophies  and  similarity  of products  and  customer
      orientation.

o     The terms of the merger agreement and the merger, including the exchange
      ratio.

                                       16

<PAGE>

o     The current and prospective  economic and competitive  environment  facing
      the banking industry generally, and Security in particular,  including the
      continued pace of consolidation in the industry,  the perceived importance
      of operational scale in enhancing  efficiency and profitability and
      remaining  competitive over the long term,  and  the  benefits  of
      increased  geographic  diversification.  In  this regard,  the board noted
      that the combined bank  resulting  from the merger will have over 30
      offices  in  northern  Virginia  and will  possess  the  financial
      resources and economies of scale  necessary to compete more  effectively
      in the financial services industry in the future.

o     The  presentation  of Scott & Stringfellow  to the board on November
      10, 1998,  that as of such date,  the exchange ratio was fair from a
      financial point of view to the Security shareholders.

o     The expectation  that the merger will be tax-free for federal income
      tax purposes to Security and its shareholders,  except for cash paid
      instead of fractional shares.

o     The generally  favorable impact that the merger could be expected to
      have on the shareholders,  customers,  and employees of Security and
      the communities it serves.

o     The terms of the stock option  agreement  between F&M and  Security,
      including  the risk  that it might  discourage  third  parties  from
      offering  to  acquire  Security  by  increasing  the cost of such an
      acquisition,  and recognizing that the execution of the stock option
      agreement  was a  condition  to  F&M's  willingness  to agree to the
      merger.

       Additionally,  in considering  the opinion of Scott &  Stringfellow,  the
board was advised that in arriving at such opinion,  Scott & Stringfellow relied
upon median  estimates of F&M's and Security's  1998 and 1999 earnings per share
and earnings per share growth rates.

       Based on its discussion and consideration of the factors discussed above,
the Security board voted  unanimously to approve the merger as being in the best
interests of Security, its shareholders, employees and customers.

       The Security board recommends that you vote "FOR" approval of the merger.

Opinion of Financial Advisor

      Pursuant to an  engagement  letter dated as of November 5, 1998,  Security
retained  Scott &  Stringfellow  as its  financial  advisor in  connection  with
Security's  consideration  of a  possible  business  combination  with  F&M.  In
connection  therewith,  the Security board  requested  Scott &  Stringfellow  to
render its opinion as to the  fairness,  from a financial  point of view, of the
consideration  from F&M to the holders of Security common stock. At the November
10,  1998  meeting  at  which  Security's  board  considered  and  approved  the
agreement,  Scott & Stringfellow delivered to Security's board both its oral and
written opinion that as of such date, the  consideration to be received from F&M
was fair,  from a financial  point of view, to the holders of shares of Security
common stock. Scott & Stringfellow has reconfirmed its opinion dated the date of
this proxy statement/prospectus, to the effect that, as of the date thereof, the
consideration  was fair to the holders of shares of Security common stock from a
financial point of view. Scott & Stringfellow is a regional  investment  banking
firm and was selected by Security based on the firm's  reputation and experience
in investment  banking,  its extensive  experience and knowledge of the Virginia
banking market, its recognized  expertise in the valuation of commercial banking

                                       17

<PAGE>
businesses  and because of its  familiarity  with,  and prior work for Security.
Scott & Stringfellow,  through its investment  banking business and specifically
through its Financial  Institutions  Group  specializes  in  commercial  banking
institutions and is continually  engaged in the valuation of such businesses and
their  securities  in  connection  with  mergers  and  acquisitions,  negotiated
underwritings, competitive biddings and other corporate transactions.

      The full text of Scott &  Stringfellow's  opinion,  dated the date of this
proxy  statement/prospectus,  which sets forth the assumptions made,  procedures
followed, matters considered and limits on the review undertaken, is attached as
Appendix III to this proxy statement/prospectus.  The description of the Scott &
Stringfellow  opinion set forth herein is qualified in its entirety by reference
to  Appendix  III.  The  Scott  &  Stringfellow  opinion  is  provided  for  the
information  of Security  shareholders  because it was  provided to the Security
board in connection with its consideration of the merger.

      In developing its opinion, Scott & Stringfellow reviewed and analyzed:

o     the merger agreement;

o     this proxy statement/prospectus;

o     Security's audited financial statements for the three years ended December
      31, 1997;

o     Security's  unaudited  financial  statements  for the nine months ended
      September 30, 1998 and 1997, and other internal information relating to
      Security prepared by Security's management;

o     information  regarding the trading market for Security common stock and
      F&M  common  stock and the price  ranges  within  which the  respective
      stocks have traded;

o     the relationship of prices paid to relevant  financial data such as net
      worth,  earnings,  deposits and assets in certain bank and bank holding
      company mergers and acquisitions in recent years;

o     F&M's  annual  reports  to  shareholders  and  its  audited   financial
      statements for the three years ended December 31, 1997;

o     F&M's  unaudited  financial   statements  for  the  nine  months  ended
      September 30, 1998 and 1997 and other internal  information relating to
      F&M prepared by F&M's management; and

o     such other information as it deemed  appropriate,  the material portion
      of which is described below.

      Scott &  Stringfellow  also took into  account its  assessment  of general
economic,   market  and  financial   conditions  and  its  experience  in  other
transactions,  as well as its experience in securities  valuations and knowledge
of the commercial  banking  industry  generally.  Scott & Stringfellow  also has
discussed  with  members of  Security's  and F&M's  management  past and current
business operations, the background of the merger, the reasons and basis for the
merger,  results  of  regulatory  examinations,  and  the  business  and  future
prospects of Security and F&M individually and as a combined entity,  as well as
other matters relevant to its inquiry. In these discussions, F&M did not discuss
with  or  provide  to  Scott  &  Stringfellow  any   forward-looking   financial
information.

                                       18
<PAGE>

      Scott & Stringfellow  relied  without  independent  verification  upon the
accuracy and completeness of all of the financial and other information reviewed
by it and  discussed  with it for  purposes  of its  opinion.  With  respect  to
financial  forecasts  reviewed by Scott & Stringfellow in rendering its opinion,
Scott &  Stringfellow  assumed that such  financial  forecasts  were  reasonably
prepared on the basis  reflecting  the best  currently  available  estimates and
judgment  of the  managements  of  Security  and F&M as to the future  financial
performance of Security and F&M, respectively. Scott & Stringfellow did not make
an independent  evaluation or appraisal of the assets or liabilities of Security
and F&M nor was it furnished with any such appraisal.

      In connection with rendering its opinion, Scott & Stringfellow performed a
variety of financial  analyses.  Scott &  Stringfellow  evaluated  the financial
terms of the transaction using standard valuation methods,  including comparable
acquisition analysis, pro forma merger analysis, present value analysis, ability
to pay analysis and comparable company analysis,  among others. The following is
a summary of the  material  analyses  presented by Scott &  Stringfellow  to the
Security board in connection with its fairness opinion dated as of such date.

      Summary  of  Proposal.  Scott &  Stringfellow  reviewed  the  terms of the
proposed transaction,  including the $17.25 of consideration to be received from
F&M. Based on such  consideration,  Scott & Stringfellow  calculated the premium
over the closing  price of Security  common stock on November 9, 1998,  price to
book,  price to tangible  book,  implied  core deposit  premium  (defined as the
transaction  value minus the tangible book value  divided by core  deposits) and
price to trailing twelve months' earnings  multiple for Security.  This analysis
yielded a premium over the closing price of Security common stock on November 9,
1998 of 50.0%, a price to book value multiple of 2.82x, a price to tangible book
value multiple of 2.86x,  an implied core deposit  premium of 26.40% and a price
to trailing twelve months' earnings multiple of 41.07x.

      Comparable  Acquisition Analysis.  Scott & Stringfellow reviewed 12 merger
and acquisition  transactions announced from January 1, 1997 to November 9, 1998
involving  community  commercial banking  institutions in Virginia  ("Comparable
Transactions").  Scott & Stringfellow compared the price to book value, price to
tangible book value,  price to last twelve months' earnings,  price to deposits,
price to assets,  the implied  core  deposit  premium,  and the premium over the
seller's prior day closing price at the  announcement  date for such  Comparable
Transactions to the proposed merger at  announcement.  In its analysis,  Scott &
Stringfellow  noted that Security had significantly more equity capital relative
to  its  assets  than  the  acquired  banks  in  the  Comparable   Transactions.
Accordingly,  Scott &  Stringfellow  adjusted  Security's  equity  such that its
equity-to-assets  ratio equaled that of the  aforementioned  acquired banks. The
price to book,  price to tangible book, and implied core deposit premium reflect
this adjustment.

                                        F&M/              Comparable
                                      Security           Transactions

Deal Price/Book Value                   2.82x                2.56x

Deal Price/Tangible Book                2.86x                2.59x

Deal Price/LTM Earnings                41.07x               22.82x

Deal Price/Deposits                    33.93%               30.85%

Deal Price/Assets                      28.85%               26.33%

Tangible Book Premium/Core             26.40%               21.83%
Deposits

Deal Price/Seller's Prior Day
Closing Price                          50.00%               24.83%

                                       19
<PAGE>

      Pro Forma Merger Analysis. Scott & Stringfellow analyzed certain pro forma
effects of the merger based upon earnings forecasts of Security and F&M, as well
as estimated cost savings and revenue enhancements totaling $300,000 expected to
result from the merger.  This analysis  indicated that the transaction  would be
dilutive  to  earnings  per  share of F&M in 1999  and  accretive  in each  year
thereafter,  once the projected cost savings and projected revenue  enhancements
are  realized,  and that the merger  would be modestly  accretive  to F&M's book
value and tangible book value per share.  The actual results achieved by F&M may
vary from projected results.

           1998 EPS Accretion                                  (0.66%)
           (Dilution)

           1999 EPS Accretion                                  (0.60%)
           (Dilution)

           Book Value Accretion                                0.33%

           Tangible Book Value                                 0.43%
           Accretion

      Present  Value  Analysis.  Scott &  Stringfellow  performed an analysis to
determine a range of present values per share of Security  common stock assuming
Security  continued to operate as an independent  community bank. This range was
determined by present  valuing the estimated  value of Security  common stock at
the end of year 2003.  Scott & Stringfellow  used earnings  estimates  available
from Security's management for 1998. The net income projections were grown using
an earnings  growth rate of 8% for years 1999 through 2003.  The future value of
Security common stock at the end of year 2003 was determined by applying a range
of price-to-earnings multiples (15.0x to 17.0x) to year 2003 projected earnings.
These values were  discounted  to present value using  discount  rates of 11% to
13%, which Scott & Stringfellow  viewed as the  appropriate  discount rate range
for a commercial bank with Security's risk characteristics. Based upon the above
assumptions,  the value of Security common stock ranged from approximately $8.05
to $9.97 per share on a stand-alone basis.


                           Terminal Price/Earnings Multiple
              -----------------------------------------------------------
 Discount
   Rate        15.0x       15.5x       16.0x       16.5x        17.0x
 --------      -----       -----       -----       -----        -----
11.00%        $8.80       $9.09       $9.38       $9.68        $9.97

11.50          8.60        8.89        9.18        9.46         9.75

12.00          8.41        8.69        8.97        9.25         9.53

12.50          8.23        8.50        8.78        9.05         9.32

13.00          8.05        8.31        8.58        8.85         9.12

                                       20
<PAGE>

      Ability  to Pay  Analysis.  Scott &  Stringfellow  performed  an  analysis
comparing the merger to  hypothetical  acquisitions  of Security by five banking
institutions  other than F&M for consideration  equivalent in value to the value
of the  consideration  proposed  in the merger  and  reviewed  certain  publicly
available information with respect to such hypothetical acquirors.  The analyses
used IBES median earnings  estimates for the hypothetical  acquirors and assumed
cost  savings  identical  to those for F&M.  Scott &  Stringfellow  analyzed the
effect of such transactions on the hypothetical acquirors' 1998 earnings.  Scott
& Stringfellow  calculated  the earnings  dilution  effect to such  hypothetical
acquirors, ranging between 0.21% and 4.68% dilution to 1998 earnings.

                             Bank A    Bank B    Bank C    Bank D    Bank E
                          -----------------------------------------------------

1998 EPS Accretion           (0.21%)   (0.36%)   (0.57%)   (2.04%)   (4.68%)
(Dilution)

      Analysis of Selected Comparable  Companies.  Scott & Stringfellow analyzed
the performance and financial condition of F&M relative to a group of commercial
banks consisting of FCNB Corp., F&M Bancorp,  First Virginia Banks, Inc., Fulton
Financial   Corporation,   Keystone  Financial,   Inc.,   Mercantile  Bankshares
Corporation,  One Valley Bancorp,  Inc., Sandy Spring Bancorp, Inc., Susquehanna
Bancshares, Inc., Union Bankshares Corporation, and United Bankshares, Inc. (the
"Bank Peer  Group").  The  financial  ratios  shown in the table below are as of
September 30, 1998; the market price  multiples are based on market prices as of
November 9, 1998.


                                                             Bank Peer
                                           F&M             Group Average
                                           ---             -------------
Last 12 Months Net Interest Margin         4.70%                4.52%

Last 12 Months Efficiency Ratio           59.81                57.13

Last 12 Months Return on Avg.              1.30                 1.31
Assets

Last 12 Months Return on Avg.             12.96                13.17
Equity

Tangible Equity / Assets                   9.86                 8.99

Equity / Assets                           10.20                 9.79

Risk Based Capital Ratio                  16.83                15.14

Nonperforming Assets / Assets              1.15                 0.45

Reserves / Nonperforming Assets           69.44               239.39

Market Price / Last 12 Months             19.55x               18.19x
Earnings

Market Price / 1998 Estimated             17.55x               16.40x
Earnings

Market Price / 1999 Estimated             15.92x               14.61x
Earnings

Market Price / Book Value                  2.27x                2.25x

Current Dividend Yield                     2.78%                2.75%

                                       21
<PAGE>


      Other Analyses.  Scott & Stringfellow  also reviewed,  among other things,
selective  investment  research  reports on, and earnings  estimates for F&M and
analyzed available  information  regarding the ownership of F&M common stock. In
addition, Scott & Stringfellow prepared an overview of F&M's business,  prepared
a summary of the  historical  financial  performance  of F&M,  summarized  F&M's
financial goals and objectives,  and, based on publicly  available  information,
analyzed F&M's deposit  market share and branch  presence in the states in which
it operates.

      In  connection  with  its  opinion  dated  as of the  date of  this  proxy
statement,  Scott & Stringfellow  performed  procedures to update, as necessary,
certain of the analyses  described  above and reviewed the  assumptions on which
such  analyses  described  above  were  based  and  the  factors  considered  in
connection therewith.

      The summary set forth above includes all the material  factors  considered
by Scott & Stringfellow in developing its opinion. The preparation of a fairness
opinion involves various  determinations as to the most appropriate and relevant
methods  of  financial  analysis  and the  application  of these  methods to the
particular   circumstances  and,  therefor,  such  an  opinion  is  not  readily
susceptible to summary  description.  Accordingly,  notwithstanding the separate
factors discussed above, Scott & Stringfellow believes that its analyses must be
considered  as a whole and that  selecting  portions of its  analysis and of the
factors  considered by it, without  considering all analyses and factors,  could
create an incomplete view of the evaluation process underlying its opinion. As a
whole, these various analyses contributed to Scott & Stringfellow's opinion that
the  consideration  is  fair  from a  financial  point  of  view  to  Security's
shareholders.

      Pursuant to an engagement  letter dated November 5, 1998 between  Security
and Scott & Stringfellow,  in exchange for its services,  Security has agreed to
pay Scott &  Stringfellow  a transaction  fee of $100,000,  which is payable and
contingent  upon  the  consummation  of  the  merger.   In  the  past,  Scott  &
Stringfellow  has  provided  investment  banking  services to Security for which
services Scott & Stringfellow received customary fees. In the ordinary course of
its business,  Scott & Stringfellow may actively trade the equity  securities of
Security for its own account or the account of its customers,  and, accordingly,
may at any time hold a long or short position in such securities.

Effective Date

      If the merger is approved by the  shareholders  of Security,  all required
governmental  and other  consents are obtained and the other  conditions  to the
merger  are  satisfied  or  waived,  the  merger  will be  consummated  and made
effective  on the date and at the time  indicated on the  certificate  of merger
issued by the Virginia  State  Corporation  Commission  pursuant to the Virginia
Stock  Corporation  Act.  See "The  Merger  -  Representations  and  Warranties;
Conditions to the Merger" on page 23.

      It is  anticipated  that the effective date of the merger will occur on or
about March 22, 1999.

Surrender of Stock Certificates

      As soon as  practicable  after the merger,  F&M will cause  American Stock
Transfer  & Trust  Company,  its  exchange  agent,  to mail to you a  letter  of
transmittal and instructions for use to surrender the certificates  representing
shares of Security common stock in exchange for certificates representing shares
of F&M common stock.

      Security  shareholders  should not send in their  certificates  until they
receive such instructions.

                                       22
<PAGE>

      Promptly after surrender of one or more  certificates  for Security common
stock,  together  with a  properly  completed  letter of  transmittal,  you will
receive a certificate or certificates  representing  the number of shares of F&M
common stock to which you are entitled and,  where  applicable,  a check for the
amount  payable in cash instead of issuing a  fractional  share.  Lost,  stolen,
mutilated  or  destroyed  certificates  will be treated in  accordance  with the
existing procedures of F&M.

      After the merger, you will be entitled to vote the number of shares of F&M
common  stock  into  which  your  Security  common  stock  has  been  converted,
regardless  of whether you have  surrendered  your  Security  certificates.  The
merger agreement provides,  however, that no dividend or distribution payable to
the  holders  of  record  of F&M  common  stock at or as of any time  after  the
effective  date  of the  merger  will  be paid  to the  holder  of any  Security
certificate until such holder physically  surrenders such certificate,  promptly
after  which time all such  dividends  or  distributions  will be paid,  without
interest.

Representations and Warranties; Conditions to the Merger

      The merger agreement  contains  representations  and warranties by F&M and
Security,  including  representations  and  warranties  with  respect  to  their
individual  organizations,  authorizations  to enter into the merger  agreement,
capitalization,  financial  statements  and pending and  threatened  litigation.
These representations and warranties, except as otherwise provided in the merger
agreement, will not survive the effective date of the merger.

      The  obligations  of F&M and Security to consummate the merger are subject
to the following conditions, among others:

o     approval and adoption of the merger agreement by the requisite shareholder
      vote;

o     receipt  of all  necessary  regulatory  approvals  not  conditioned  or
      restricted in a manner that, in the judgment of the boards of directors
      of F&M or  Security,  materially  adversely  affects  the  economic  or
      business  benefits of the merger so as to render  inadvisable or unduly
      burdensome consummation of the merger;

o     the  absence  of  certain  actual or  threatened  proceedings  before a
      court or other governmental body relating to the merger;

o     receipt of a fairness opinion from Scott & Stringfellow; and

o     the receipt of an opinion of counsel as to certain federal income tax
      consequences of the merger.

      Also, under the terms of the merger agreement,  F&M agreed that, following
the merger,  it will indemnify  those persons  associated  with Security who are
entitled to indemnification as of the effective date of the merger.

      In  addition,  each  company's  obligation  to effect the  merger,  unless
waived, is subject to:

o     performance by the other company of its obligations under the merger
      agreement;

o     the accuracy,  in all material respects,  of the representations and
      warranties of the other company contained in the merger agreement; and

                                       23

<PAGE>

o     the receipt of certain opinions and certificates from the other company.

Regulatory Approvals

      As indicated above, the merger is conditioned on the prior approval of the
merger by the Board of Governors of the Federal  Reserve System and the Virginia
State  Corporation  Commission.  On January 12 and 13, 1999,  applications  were
filed with the Federal  Reserve and the Virginia State  Corporation  Commission.
The  applications  were accepted but no approvals have been  obtained.  While we
cannot predict whether or when we will obtain all required regulatory approvals,
we see no reason why the  approvals  will not be  obtained  in a timely  manner.
However,  there  can be no  assurance  that  the  necessary  approvals  will  be
obtained,  or that any approval will not be  conditioned in a manner which makes
consummation of the merger,  in the judgment of the board of directors of F&M or
Security, inadvisable or unduly burdensome.

Business Pending the Merger

      Except  with the prior  consent of F&M,  until the  effective  date of the
merger Security may not:

o        conduct its  operations  except only in the ordinary and usual  course,
         consistent  with past  practice and to use its best efforts to maintain
         its business  organizations,  employees and business  relationships and
         retain the services of its officers and key employees;

o        take  any  action,  engage  in  any  transactions  or  enter  into  any
         agreements  which  would  adversely  affect  or delay  in any  material
         respect  the  ability  of F&M  or  Security  to  obtain  the  necessary
         approvals,  consents  or  waivers  required  to effect the merger or to
         perform its covenants and agreements on a timely basis;

o        issue any capital  stock,  except upon  exercise of warrants or options
         issued  pursuant  to  existing  employee  benefits  plans,  programs or
         arrangements  or  effect  any  stock  split  or  otherwise  change  its
         capitalization;

o        enter into or amend any written  employment  or severance  agreement or
         similar  arrangement with any of its directors,  officers or employees,
         or  grant  any  salary  or  wage  increase  or  increase  any  employee
         compensation,  except for normal individual increases to employees made
         in the ordinary course of business consistent with past practice;

o        enter into or amend,  except as required by law, any employee  benefit,
         incentive  or welfare  arrangement,  or any  related  trust  agreement,
         relating to any of its directors, officers or employees;

o        incur any obligation or liability,  make any pledge, or encumber any of
         its  assets,  nor  dispose  of any of its  assets in any other  manner,
         except in the ordinary course of business and for adequate value, or as
         otherwise permitted in the merger agreement;

o        change its lending,  investment,  asset/liability  management  or other
         material  banking  policies in any material  respect,  except as may be
         required by law;

o        amend its articles of incorporation or bylaws;

                                       24

<PAGE>

o     declare or pay dividends on its capital stock; or

o     purchase or redeem any of its capital stock.

      Pending  consummation  of the  merger,  F&M has  agreed  that  F&M and its
subsidiary banks will operate their respective businesses in the ordinary course
and use their best efforts to preserve their respective properties, business and
customer and employee relationships.

No Solicitation; Board Action

      Security  has agreed not to solicit or  encourage  inquiries  or proposals
with respect to,  furnish any  information  relating to, or  participate  in any
negotiations regarding any merger, consolidation, share exchange, joint venture,
business combination or similar transaction  involving Security, or any purchase
of all or any  material  portion  of the  assets of  Security  (an  "Acquisition
Transaction").

      Notwithstanding  the  above-described   non-solicitation   provision,  the
Security  board  may  furnish  information  to,  or enter  into  discussions  or
negotiations with, any person or entity that makes an unsolicited,  written bona
fide proposal  regarding an Acquisition  Transaction  if, and only to the extent
that:

o        the Security board concludes in good faith, after consultation with and
         based  upon the  advice of  outside  counsel,  that it is  required  to
         furnish such information or enter into such discussions or negotiations
         in order to comply  with its  fiduciary  duties to  shareholders  under
         applicable law;

o        prior to taking  such  action,  Security  receives  from such person or
         entity an executed confidentiality agreement; and

o        the Security board concludes in good faith that the proposal  regarding
         the Acquisition  Transaction contains an offer of consideration that is
         superior to the consideration set forth in the merger agreement.

      Security has also agreed that it shall  immediately  notify F&M orally and
in  writing  of the  receipt  by it of any  proposal  or  inquiry  regarding  an
Acquisition  Transaction,  the material terms and conditions of such proposal or
inquiry, and the identity of the person making any such proposal or inquiry.

Waiver, Amendment and Termination

      At any time on or before the  effective  date of the  merger,  any term or
condition of the merger,  except for the general conditions set forth in Section
5.1(a) - (d) of the  merger  agreement,  may be  waived  by the  party  which is
entitled to the benefits thereof,  without shareholder  approval,  to the extent
permitted under  applicable law. The merger agreement may be amended at any time
before  the  merger by  agreement  of the  parties  whether  before or after the
special  meeting,  except that the  exchange  ratio  shall not be changed  after
approval of the merger  agreement  by the  Security  shareholders.  Any material
change in a material term of the merger agreement would require a resolicitation
of Security's  shareholders.  Such a material  change would include,  but not be
limited to, a change in the tax consequences to Security's shareholders.

                                       25

<PAGE>

      The merger agreement may be terminated by F&M or Security,  whether before
or after the approval of the merger by the shareholders of Security:

o     by mutual consent of Security and F&M;

o     unilaterally  by Security or F&M, if the merger has not  occurred on or
      before  September  30,  1999,  except that the party  whose  failure to
      perform any obligation  under the merger  agreement is the cause of the
      delay may not terminate the merger based upon the delay; or

o     unilaterally  by Security or F&M if the  satisfaction  in any  material
      respect of one or more  conditions  to the  obligation of that party is
      rendered impossible of satisfaction.  In the event of termination,  the
      merger  agreement  shall  become  null and void,  except  that  certain
      provisions   thereof  relating  to  expenses  and   confidentiality  of
      information  exchanged  between  the  parties  shall  survive  any such
      termination.

                                       26

<PAGE>

Resales of F&M Common Stock

      All shares of F&M common  stock  received  by you in  connection  with the
merger will be freely  transferable,  except that F&M common  stock  received by
persons who are deemed to be  "affiliates"  of Security for purposes of Rule 145
under the Securities Act of 1933. To the best knowledge of Security and F&M, the
only  persons who may be deemed to be  affiliates  of Security  subject to these
limitations are the directors and executive officers of Security.

Accounting Treatment

      We  anticipate  that the  merger  will be  accounted  for as a pooling  of
interests for accounting and financial reporting purposes.  Under this method of
accounting,  recorded  assets and  liabilities  of F&M and  Security are carried
forward  at  their  previously   recorded   amounts,   income  of  the  combined
corporations  will include income of F&M and Security for the entire fiscal year
in which the merger occurs, and the reported income of the separate corporations
for  prior  periods  will  be  combined.  No  recognition  of  goodwill  in  the
combination is required of any party to the merger.

      For the merger to qualify as a pooling  of  interests,  it must  satisfy a
number of conditions  including that  substantially  all of the Security  common
stock be exchanged for F&M common stock.  If any of the conditions to pooling of
interests  accounting  is not  satisfied,  then the merger would not qualify for
pooling of interests accounting treatment,  and a condition to the obligation of
F&M to  consummate  the merger would not be satisfied  (unless,  F&M took action
which prevented the merger from  qualifying as a pooling of interests,  in which
case it will not be a condition  to the merger).  Each of F&M and Security  have
agreed  that they will use their  respective  best  efforts  to ensure  that the
merger will qualify for pooling of interests accounting treatment.  In addition,
certain  affiliates  of F&M and Security have agreed that they will not sell any
F&M common stock or Security  common  stock within 30 days before the  effective
date of the  merger,  nor sell any F&M common  stock  until such time as F&M has
published financial results covering at least 30 days of the combined operations
of F&M and Security after the merger.

Interests of Certain Persons in the Merger

      Certain  members of Security's  management,  as well as certain members of
the Security  board of  directors,  have  interests in the merger in addition to
their interests as shareholders  of Security.  These include,  provisions in the
merger  agreement  relating to  indemnification  of  directors  and  officers of
Security,  the treatment of outstanding  options with respect to Security common
stock and  eligibility  for certain F&M  employee  benefits.  In each case,  the
Security board was aware of these  potential  interests,  and  considered  them,
among other  matters,  in approving the merger  agreement  and the  transactions
contemplated thereby.

      Indemnification.  F&M has generally  agreed to indemnify,  for a period of
six years after the merger,  the  officers  and  directors  of Security  against
certain  liabilities  arising before the effective date of the merger.  F&M also
has agreed to provide  directors'  and  officers'  liability  insurance  for the
present officers and directors of Security for a period of three years after the
merger.

      Directors of F&M Bank-Northern  Virginia. Four of the current directors of
Security will become directors of F&M  Bank-Northern  Virginia upon consummation
of the merger or as soon  thereafter as  practicable.  Those directors will each
receive $225 for every board meeting they attend.  Directors of Security who are
not  appointed to the board of directors of F&M  Bank-Northern  Virginia will be
offered a position on F&M  Bank-Northern  Virginia's  advisory board and will be
paid a quarterly fee of $100 for their services.

                                       27

<PAGE>

      Stock  Options.  Certain  directors  and  officers of Security  hold stock
options under  Security's  1996 Director Stock Option Plan and  Security's  1996
Employee  Stock Option Plan to acquire an aggregate of 77,100 shares of Security
common stock at exercise  prices  ranging from $8.00 to $13.12 per share.  These
options,  if not exercised before the merger,  will be converted into options to
acquire  shares of F&M common  stock,  appropriately  adjusted  to  reflect  the
exchange ratio.

      Employment Agreement.  Mr. Danny R. May, the President and Chief Executive
Officer of Security,  will receive payments totaling $156,661 under his existing
employment  agreement upon the merger.  Mr. May's employment  agreement provides
for such a severance  allowance  if there is a change of ownership or control of
Security  and his job duties  are  substantially  reduced.  His  agreement  also
provides  that F&M must  continue  for a two year  period his  medical and other
insurance  coverage.  Mr. May has accepted F&M's offer to join F&M Bank-Northern
Virginia as a senior vice president. He will not have an employment or severance
agreement with F&M.

      Employee  and  Benefit  Plans.  The  merger  agreement  provides  that all
officers  and  employees  of  Security  will  be  offered   positions  with  F&M
Bank-Northern  Virginia at not less than the  salaries  they have with  Security
prior to the  merger.  As soon as  administratively  practicable  following  the
merger,  employees  of  Security  will be  entitled  to  participate  in the F&M
pension,  health and welfare  benefit  and  similar  plans on the same terms and
conditions as employees of F&M.  Employees of Security  will receive  credit for
their years of service to Security for participation and vesting purposes only.

The Option Agreement

      The option agreement was entered into as a condition to F&M's  willingness
to enter into an  agreement in  principle  with  Security as to the terms of the
merger and to increase the probability of the merger. Exercise of the F&M option
may make the acquisition of a controlling interest in Security more expensive to
any  prospective  acquiror other than F&M, even if such an acquisition  would be
beneficial  to you. The  existence of the F&M option is intended to make it less
likely  that a  prospective  acquiror,  other  than F&M,  will  seek a  business
combination  with  Security.  The  following  is a brief  summary  of the option
agreement and is qualified in its entirety by reference to the option agreement,
a copy of which is  attached to this proxy  statement/prospectus  as Appendix II
and incorporated by reference herein.

      The option  agreement  permits the exercise by F&M of an option to acquire
up to 191,300  shares of Security  common  stock at a price of $11.00 per share,
subject to adjustment upon the occurrence of certain events described below. The
shares  subject  to  the  F&M  option  represent   approximately  19.9%  of  the
outstanding  shares  of  Security  common  stock  as of the  date of the  option
agreement, November 10, 1998.

      F&M may exercise its option, in whole or in part, at any time or from time
to time,  upon or after the  occurrence  of a  "Purchase  Event." As used in the
option agreement, a "Purchase Event" means:

o        Security shall have entered into an agreement with a person (other than
         F&M or its affiliates) to: (i) acquire,  merge or consolidate  with, or
         enter into any similar transaction with Security, (ii) purchase,  lease
         or  otherwise  acquire  all  or  substantially  all of  the  assets  of
         Security,  or (iii) purchase or otherwise acquire  (including by way of
         merger,  consolidation,  share  exchange  or any  similar  transaction)
         securities representing more than 10% of the voting power of Security;

                                       28

<PAGE>

o        any person shall have acquired beneficial ownership of more than 20% of
         the outstanding shares of Security common stock; or

o        a bona  fide  proposal  is made by any  person  (other  than F&M or its
         affiliates) by public announcement or written  communication that is or
         becomes  the  subject  of  public  disclosure  to  acquire,   merge  or
         consolidate with, or enter into any similar  transaction with Security,
         and following  such proposal the  shareholders  of Security vote not to
         approve the merger agreement.

      Security is required to notify F&M upon the  occurrence of a  transaction,
offer or event  giving  rise to a  Purchase  Event.  In the event F&M  wishes to
exercise the option,  it must send Security  written  notice  specifying (a) the
total  number of shares it will  purchase and (b) the place and date not earlier
than three business days nor later than 60 business days after the date on which
such notice is given for the closing of the purchase.  If prior notification to,
or approval of, any federal or state  regulatory  agency is  required,  F&M will
promptly file the required  notice or application for approval and the period of
time that  otherwise  would run pursuant to such notice  period will run instead
from the date on which the last required  notification period has expired or has
been  terminated or such approvals have been obtained and any requisite  waiting
period has passed.

      F&M's  option  will  expire and  terminate,  to the extent not  previously
exercised, upon the earlier of:

o     the effective date of the merger;

o     the date on which the merger  agreement  is  terminated,  other than a
      termination  based upon a material  breach by Security of any covenant
      in  the  merger  agreement  or  the  failure  of  Security  to  obtain
      shareholder  approval of the  transactions  contemplated by the merger
      agreement  by the vote  required  by  applicable  law,  in either case
      following the occurrence of a Purchase Event; or

o     twelve months after the merger  agreement is  terminated  based upon a
      material  breach by Security  of certain  specified  covenants  or the
      failure of Security to obtain shareholder approval of the transactions
      contemplated  by the  merger  agreement  by the  vote  required  under
      applicable  law, in either case following the occurrence of a Purchase
      Event.

      If Security's capitalization changes by reason of stock dividend, split-up
merger,  recapitalization,  combination,  exchange  of shares  or the like,  the
number of shares  subject to the option and the purchase price per share thereof
will be adjusted so that the economic value of the option remains unaltered.

Material Federal Income Tax Consequences of the Merger

      The  following  is  a  discussion  of  all  material  federal  income  tax
consequences  of  the  merger  under  the  Internal  Revenue  Code  to  Security
shareholders who receive F&M common stock solely in exchange for Security common
stock and cash instead of fractional  shares.  The discussion does not deal with
all aspects of federal  taxation  that may be relevant  to  particular  Security

                                       29

<PAGE>

shareholders. Certain tax consequences of the merger may vary depending upon the
particular circumstances of each Security shareholder and other factors.

      You are urged to consult with your tax advisor to determine the particular
tax consequences of the merger to you.

      This summary is based on current law and the advice of LeClair Ryan, legal
counsel to F&M.  The advice in this  summary is based on,  among  other  things,
certain customary assumptions and representations  relating to certain facts and
circumstances of, and the intentions of the parties to, the merger.  Neither F&M
nor  Security  has  requested  a ruling  from the  Internal  Revenue  Service in
connection  with the merger.  To meet a condition to consummation of the merger,
F&M and Security will receive from LeClair  Ryan,  counsel to F&M, an opinion as
to certain federal income tax  consequences  of the merger.  Such opinion is not
binding on the Internal Revenue Service.

      In  the  opinion  of  counsel,  the  merger  will  constitute  a  tax-free
reorganization under Section 368(a) of the Internal Revenue Code, if consummated
in the  manner  set forth in the  merger  agreement.  Accordingly,  among  other
things, in the opinion of such counsel:

o     The merger will  constitute a  reorganization  within the meaning of
      Section 368(a) of the Internal Revenue Code;

o     No gain or loss will be recognized by F&M or Security as a result of the
      merger;

o     No gain or loss will be  recognized  by a Security  shareholder  to the
      extent he or she  receives  F&M common stock solely in exchange for his
      Security common stock pursuant to the merger;

o     The tax  basis  of the  F&M  common  stock  received  by each  Security
      shareholder  will be the same as the tax basis of the  Security  common
      stock surrendered in exchange therefor; and

o     The holding  period for each share of F&M common stock received by each
      Security shareholder in exchange for Security common stock will include
      the period for which such  shareholder  held the Security  common stock
      exchanged  therefor,  provided such Security  common stock is a capital
      asset in the hands of such holder at the effective date.

      Any cash  received by you instead of  fractional  shares  could  result in
taxable  income to you. The receipt of such cash will  generally be treated as a
sale or exchange of the stock  resulting in capital gain or loss measured by the
difference  between the cash  received and an allocable  portion of the basis of
the stock  relinquished.  The  receipt of such cash may be treated as a dividend
and taxed as ordinary income in certain limited situations.

Absence of Appraisal Rights

      Under Section 6.1-43 of the Virginia Banking Act, shareholders of Security
will not be  entitled  to dissent  from the  merger  and  obtain the  judicially
determined fair value of their shares of Security.

Certain Differences in Rights of Shareholders

      Both F&M and Security are  corporations  subject to the  provisions of the
Virginia  SCA.  Your  shareholder  rights are  presently  governed by Security's

                                       30

<PAGE>

articles of incorporation  and bylaws.  Upon consummation of the merger and your
becoming a shareholder of F&M, your  shareholder  rights will be governed by the
articles of incorporation and bylaws of F&M.

      There  are no  material  differences  between  the  rights  of a  Security
shareholder  under Security's  articles of incorporation  and bylaws, on the one
hand, and the rights of an F&M shareholder  under the articles of  incorporation
and  bylaws  of F&M,  on the other  hand,  except as  disclosed  in the  section
"Comparative Rights of Shareholders" on page 35.


Expenses of the Merger

      In general,  whether or not the merger is  consummated,  Security  and F&M
will pay their own expenses  incident to  preparing,  entering into and carrying
out the merger agreement, and preparing and filing the registration statement of
which this proxy  statement/prospectus  is a part.  F&M will,  however,  pay the
expenses of printing and mailing this proxy  statement/prospectus,  and may make
payment under  circumstances  involving willful and material breaches of certain
provisions of the merger agreement.

      If either party  willfully and materially  breaches the merger  agreement,
that party must pay the costs associated with this  transaction  incurred by the
non-breaching  party. If the merger  agreement is terminated by Security because
it is not  approved by  Security  shareholders,  Security  must pay 50% of F&M's
costs in this transaction, up to $50,000.

Cautionary Statement Concerning Forward-Looking Statements

      This  proxy   statement/prospectus,   including  information  included  or
incorporated by reference herein,  contains certain  forward-looking  statements
with  respect  to  the  financial  condition,  results  of  operations,   plans,
objectives, future performance and businesses of each of F&M and Security. These
forward-looking statements involve certain risks and uncertainties. Factors that
may cause actual results to differ  materially  from those  contemplated by such
forward-looking statements include, among others, the following possibilities:

o     competitive pressure in the banking industry increases significantly;

o     changes in the interest rate environment reduce margins;

o     general economic conditions,  either nationally or regionally, are less
      favorable   than  expected,   resulting  in,  among  other  things,   a
      deterioration in credit quality;

o     changes occur in the regulatory environment;

o     changes occur in business conditions and inflation; and

o     changes occur in the securities markets.

                           MARKET PRICES AND DIVIDENDS

Market Prices

     F&M common stock is listed and traded on the NYSE under the symbol "FMN."
Since June 24, 1996, Security common stock has traded on the Nasdaq SmallCap
Market under the symbol "SecurityM." Before that, Security common stock was
quoted on the OTC Bulletin Board.

                                       31
<PAGE>

      The  following  tables  provide:  (a) in the case of F&M, the high and low
closing sales prices for F&M common stock on the NYSE for the periods indicated,
and (b) in the case of  Security,  the high and low closing  sales prices on the
Nasdaq SmallCap Market.

                                       32
<PAGE>



      F&M

                                            Closing Sales Prices
                            ----------------------------------------------------
                                  1999             1998                1997
                            ----------------  ----------------   ---------------
                              High     Low     High      Low      High     Low

1st Quarter (through
January 28)................ $29.94   $27.13  $36.25    $31.75    $22.88  $19.63
2nd Quarter................     --       --   34.31     32.00     26.38   19.88
3rd Quarter................     --       --   31.56     26.13     30.44   26.00
4th Quarter................     --       --   31.69     25.06     36.25   28.56

      The closing price of F&M common stock on the NYSE on November 9, 1998, the
last full trading day preceding the public  announcement of the proposed merger,
was  $29.6875  per share.  The closing  price of F&M common stock on the NYSE on
January  28,  1999,  the latest  practicable  date before the date of this proxy
statement/prospectus was $28.875 per share.

      Security

                                            Closing Sales Prices
                            ----------------------------------------------------
                                  1999             1998                1997
                            ----------------  ----------------   ---------------
                              High     Low     High      Low      High     Low

1st Quarter (through
January 28)................ $16.00   $15.75   $13.75   $12.50   $13.88    $9.75
2nd Quarter ...............     --       --    13.50    12.00    10.00     9.38
3rd Quarter................     --       --    12.38    11.25    10.00     9.13
4th Quarter................     --       --    16.00    10.50    10.00     9.00

      As of December  31, 1998,  there were 8,190  record  holders of F&M common
stock.  As of the record date,  there were  approximately  645 record holders of
Security common stock.

Dividends

      The following table reflects the cash dividends  declared per share during
each  quarter on F&M common  stock for the periods  indicated.  Security has not
declared any cash dividends.

      The amounts  shown for F&M have not been  restated and adjusted to reflect
the acquisition on April 1, 1998 of Peoples Bank of Virginia and the acquisition
on June 1, 1998 of The Bank of Alexandria.

      F&M

                                              1998         1997

1st Quarter...........................      $0.185        $0.180
2nd Quarter...........................       0.185         0.180
3rd Quarter...........................       0.195         0.185
4th Quarter...........................       0.195         0.185

      F&M  or F&M  Bank-Winchester  has  paid  regular  cash  dividends  for
more  than  56 consecutive years.

                                       33
<PAGE>

      F&M is a legal entity separate and distinct from its subsidiaries, and its
revenues depend primarily on the payment of dividends from its subsidiary banks.
F&M's subsidiary  banks are subject to certain legal  restrictions on the amount
of dividends they are permitted to pay to F&M. For example, a Virginia chartered
bank, of which there are seven within the F&M system,  is prohibited from paying
a dividend  that would impair its paid-in  capital.  In  addition,  the Virginia
State  Corporation  Commission  may limit the payment by any Virginia  chartered
bank if it  determines  that the  limitation  is in the public  interest  and is
necessary to ensure the bank's financial soundness.

      Under current federal law, insured depository institutions,  such as F&M's
bank subsidiaries,  are prohibited from making capital distributions,  including
the payment of dividends,  if, after making such  distribution,  the institution
would become  "undercapitalized" (as such term is defined in federal law). Based
on F&M's subsidiary banks' current financial condition, F&M does not expect that
this provision will have any impact on its ability to obtain  dividends from its
insured depository institution subsidiaries.

      As a result of these legal  restrictions,  there can be no assurance  that
dividends  would be paid in the  future by F&M's  bank  subsidiaries.  The final
determination of the timing, amount and payment of dividends on F&M common stock
is at the  discretion  of F&M's  board of  directors  and will  depend  upon the
earnings of F&M and its  subsidiaries,  principally  its subsidiary  banks,  the
financial  condition  of F&M  and  other  factors,  including  general  economic
conditions and applicable governmental regulations and policies.

                            SECURITY BANK CORPORATION

General

      Financial  and other  information  relating  to  Security  is  included in
Security's 1997 Annual Report to Shareholders  and its Quarterly  Report on Form
10-QSB for the quarter ended September 30, 1998, copies of which are attached as
Appendices IV and V. The audited financial statements of Security as of December
31, 1997 and 1996 and for each of the three years in the period  ended  December
31, 1997 are included in  Security's  1997 Annual  Report to  Shareholders.  See
"Where You Can Find More Information" on page 41.

History and Business

      Security  was organized in 1986.  As of September  30, 1998,  Security had
total  assets of $60.4  million,  total  deposits  of $51.4  million,  and total
shareholder's equity of $8.1 million.

      Security  is a locally  oriented  community  bank which seeks to serve the
needs of small and medium size  businesses,  professionals  and consumers in the
City of Manassas and the surrounding  area,  which area  constitutes  Security's
primary  service  area.  Security  offers  a wide  range of  commercial  banking
services  to  businesses  and  professionals  in its  service  area,  as well as
comprehensive  deposit and lending services for consumers.  Security's  deposits
are insured to the fullest extent  provided by law by the Bank Insurance Fund of
the Federal Deposit Insurance Corporation.

      Security operates two branch locations in Manassas,  Virginia. Each branch
has an  automated  teller  machine,  or ATM. At  September  30,  1998,  Security
employed 23 full-time and 6 part-time employees.

                                       34
<PAGE>

Competition

      In attracting deposits and making loans,  Security encounters  competition
from other  institutions,  including larger  commercial  banking  organizations,
savings  banks,  credit  unions,  other  financial   institutions  and  non-bank
financial service companies serving Security's service area. Competitors include
major financial companies whose substantially  greater resources may afford them
a marketplace  advantage by enabling them to maintain numerous banking locations
and mount  extensive  promotional  and  advertising  campaigns.  Because  of the
deregulation of the financial  service industry and the absence of interest rate
controls  on  deposits,  Security  anticipates  that  it  will  face  continuing
competition  from all of these  institutions in the future.  Additionally,  as a
result  of state and  federal  legislation  regarding  reduced  restrictions  on
interstate banking,  Security has faced additional competition from institutions
outside  Virginia which have taken  advantage of such  legislation to acquire or
establish  banks or branches in Virginia.  Additional  changes in the  financial
services industry, including rapid technology changes, may act as a catalyst for
further basic structural  change within the financial  services industry and may
result in additional competition.

Security Ownership of Management

      The following table provides information as of December 31, 1998 regarding
the number of shares of  Security  common  stock  beneficially  owned by (a) all
directors  and executive  officers of Security,  (b) all directors and executive
officers of Security as a group,  and (c) those  persons or groups that own five
percent or more of the  outstanding  shares of Security  common  stock.  For the
purposes of this table,  beneficial  ownership has been determined in accordance
with the  provisions  of Rule 13d-3 under the  Securities  Exchange  Act of 1934
under  which,  in  general,  a person is deemed  to be a  beneficial  owner of a
security  if he has or  shares  the power to vote or  direct  the  voting of the
security or the power to dispose or direct disposition of the security, or if he
has the right to acquire beneficial ownership of the security within 60 days.



                                   Common Stock
Name                            Beneficially Owned         Percent of Class
- ----                            ------------------         ----------------
Director

John T. DeBell, Sr......             11,832 (1)                   1.20%
John O. Gregory.........             36,060 (2)                   3.66
Michael C. Martin.......              9,417 (3)                   0.96
Danny R. May............             33,305 (4)                   3.34
Harry J. Parrish II.....             14,580 (5)                   1.48
Richard J. Ratcliffe....             10,059 (6)                   1.02
Danny G. Snow...........            133,486 (7)                  13.56
Kenneth B. Swenson......             11,639 (8)                   1.18

All executive officers and
  directors as a group
  (10 persons)..........            270,128                      25.77

Robert H. Digges
1700 N. Albemarle Street
McLean, Virginia 22101..             54,934 (9)                   5.73

Financial Institution
  Partners,
L.P.,  and  Hovde  Capital,
  Inc.                               68,780                       7.17
1629 Colonial Parkway
Inverness, Illinois 60067

                                       35

<PAGE>


- ----------------
   (1)Includes  2,206 shares held by Mr. DeBell in a  self-directed  IRA,  6,000
      vested option shares, and 2,240 shares held by Bengtson,  DeBell and Elkin
      for which Mr.  DeBell  exercises  voting and  investment  power.  Does not
      include 976 shares held by Mr.  DeBell's  spouse and 2,679  shares held by
      Mr. DeBell's spouse in a self-directed IRA.
   (2)Includes  22,089 shares held jointly by Mr. Gregory and his spouse,  3,805
      shares held by Mr. Gregory in a self-directed IRA, and 6,000 vested option
      shares. Does not include 3,600 shares held by Mr. Gregory's spouse.
   (3)Includes  332 shares held as  custodian  for a minor  child,  1,693 shares
      held by Mr. Martin in a self-directed IRA, and 6,000 vested option shares.
   (4)Includes  12,580  shares held in Mr.  May's  self-directed  IRA and 20,000
      vested option shares.
   (5)Includes  2,160 shares held as custodian  for a minor child,  6,000 vested
      option  shares,  and 420 shares  held by a minor  child.  Does not include
      1,440 shares held by Mr. Parrish's spouse.
   (6)Includes  3,000 shares held jointly by Mr.  Ratcliffe and his spouse,  300
      shares held jointly by Mr. Ratcliffe and Ann R. Harrover,  134 shares held
      as  custodian  for a minor  child,  625  shares  held  in Mr.  Ratcliffe's
      self-directed IRA, and 6,000 vested option shares.
   (7)Includes 38,667 shares held in Mr. Snow's  self-directed IRA, 6,000 vested
      option  shares,  2,500  shares  held  jointly by Mr.  Snow and Lynne Snow,
      20,835 shares held by Ice  Components,  Inc. for which Mr. Snow  exercises
      voting and investment power.
   (8)Includes  4,225  shares  held  jointly by Mr.  Swenson  and his spouse and
      6,000 vested option shares.
   (9)All shares are held in Mr. Digges' Keogh account.  Does not include 10,000
      shares held by Mr. Digges' spouse.

                                 BUSINESS OF F&M

History and Business

      F&M was formed in 1969 to serve as the parent holding  company of its then
sole  subsidiary  bank,  F&M  Bank-Winchester,  organized  in  1902.  Since  its
organization,  F&M has acquired  eighteen banks,  which expanded its market area
and  increased  market  share  in  Virginia  and  West  Virginia.  F&M has  nine
subsidiary  banks that  operate  120  banking  offices  offering a full range of
banking  services   principally  to  individuals  and  small  and  middle-market
businesses in the Shenandoah Valley,  central Virginia,  Southside Virginia, the
eastern panhandle of West Virginia and the Washington, D.C. metropolitan area.

      F&M's   subsidiary  banks  are   community-oriented   and  offer  services
customarily provided by full-service banks,  including individual and commercial
demand and time deposit  accounts,  commercial and consumer  loans,  residential
mortgages,  credit card services and safe deposit  boxes.  Lending is focused on
individuals and small and  middle-market  businesses in the local market regions
of the  subsidiary  banks.  F&M has  consolidated  the  operations  of the trust
departments of its subsidiary  banks in Virginia in F&M Trust Company.  F&M also
operates Big Apple Mortgage which engages in  residential  mortgage  origination
and  servicing  in the  Shenandoah  Valley  and the  eastern  panhandle  of West
Virginia.

      F&M has  maintained  its community  orientation by allowing its subsidiary
banks  latitude to tailor  products and services to meet  community and customer
needs.  While F&M has preserved  the autonomy of its  subsidiary  banks,  it has
established   system-wide  policies  governing,   among  other  things,  lending
practices,  credit analysis and approval  procedures,  as well as guidelines for
deposit  pricing and  investment  portfolio  management.  In  addition,  F&M has
established a centralized  loan review team that regularly  performs a detailed,
on-site review and analysis of each  subsidiary  bank's loan portfolio to ensure
the consistent application of credit policies and procedures system-wide. One or
more senior  holding  company  officers  serve on the board of directors of each
subsidiary bank to monitor operations and to serve as a liaison to F&M.

                                       36

<PAGE>

      F&M currently operates in seven market regions:  the Shenandoah Valley and
Loudoun     County;     the    eastern     panhandle    of    West     Virginia;
Charlottesville/Albemarle  County and surrounding  areas;  Greenville  County in
southside  Virginia;  suburban  Richmond,  primarily  Henrico  and  Chesterfield
Counties;  the northern Virginia area that includes the City of Alexandria,  the
eastern  portions  of Fairfax and Prince  William  Counties;  Warrenton  and the
surrounding Fauquier County area; and Montgomery and Prince George's Counties in
Maryland.

      At September 30, 1998, F&M had total consolidated  assets of approximately
$2.8 billion,  total consolidated  deposits through its banking  subsidiaries of
approximately   $2.3   billion   and   consolidated   shareholders'   equity  of
approximately $281.4 million.

F&M's Acquisition Program

      F&M has expanded its market area and  increased  its market share  through
both internal  growth and strategic  acquisitions.  Since 1988, F&M has acquired
approximately  $1.4 billion in assets and approximately $1.2 billion in deposits
through  fifteen bank  acquisitions.  Management  believes  there are additional
opportunities  to  acquire  financial  institutions  or to  acquire  assets  and
deposits  that will allow F&M to enter new markets or increase  market  share in
existing  markets.  Management  intends to pursue  acquisition  opportunities in
strategic  markets where its managerial,  operational and capital resources will
enhance the performance of acquired institutions and may, after the date of this
proxy  statement/prospectus,  enter  into  agreements  to  acquire  one or  more
financial  institutions.  There  can be no  assurance  that  F&M will be able to
successfully  effect  any  additional  acquisition  activity,  or that  any such
acquisition  activity will have a positive  effect on the value of shares of F&M
common stock.

      For additional  information about F&M's business,  see "Where You Can Find
More Information" on page 41.

                       COMPARATIVE RIGHTS OF SHAREHOLDERS

General

      F&M  and  Security  are  corporations  subject  to the  provisions  of the
Virginia  Stock   Corporation  Act  (the  "Virginia  SCA").  Your  rights  as  a
shareholder of Security are governed by Security's articles of incorporation and
bylaws and by the Virginia SCA. Upon consummation of the merger, you will become
a shareholder of F&M, and as such your shareholder  rights will then be governed
by the articles of incorporation and bylaws of F&M and by the Virginia SCA.

      The  following is a summary of the material  differences  in the rights of
shareholders  of Security and F&M.  This summary is qualified in its entirety by
reference to the articles of incorporation and bylaws of F&M and Security and to
the Virginia SCA.

Authorized Capital

      F&M. F&M is authorized  to issue  30,000,000  shares of common stock,  par
value $2.00 per share, of which 21,871,674 shares were issued and outstanding as
of December 31, 1998, and 5,000,000 shares of serial  preferred  stock,  without
par value,  of which no shares were issued and  outstanding  as of December  31,
1998.  F&M's  articles  of  incorporation   authorize  the  F&M  board,  without
shareholder approval, to fix the preferences, limitations and relative rights of

                                       37
<PAGE>

the  preferred  stock  and to  establish  series  of such  preferred  stock  and
determine the variations  between each series.  If any shares of preferred stock
are  issued,  the rights of holders of F&M common  stock would be subject to the
rights  and  preferences  conferred  to  holders of such  preferred  stock.  See
"Description of F&M Capital Stock" on page 39 for additional information.

      Security.  Security is  authorized to issue  3,000,000  shares of Security
common stock, par value $5.00 per share, of which 978,420 shares were issued and
outstanding as of December 31, 1998.  Security does not have an authorized class
of preferred stock.

Dividend Rights

      F&M.  The holders of F&M common  stock are  entitled  to share  ratably in
dividends  when and as  declared  by the F&M board of  directors  out of legally
available funds. One of the principal sources of income to F&M is dividends from
its subsidiary  banks. For a description of certain  restrictions on the payment
of  dividends  by banks,  see "Market  Prices and  Dividends"  on page 30. F&M's
articles of  incorporation  permit the F&M board to issue  preferred  stock with
terms set by the F&M  Board,  which  terms  may  include  the  right to  receive
dividends ahead of the holders of F&M common stock. No shares of preferred stock
are presently outstanding.

      Security.  The holders of Security common stock also are entitled to share
ratably in dividends when and as declared by the Security board of directors out
of legally  available  funds.  For a description of certain  restrictions on the
payment of dividends by banks, see "Market Prices and Dividends" on page 30.

Voting Rights

      The holders of both F&M and  Security  common stock have one vote for each
share held on any matter presented for  consideration at a shareholder  meeting.
Neither the holders of F&M nor Security  common stock are entitled to cumulative
voting in the election of directors.

Directors and Classes of Directors

      F&M.  All of F&M's  directors  are elected  each year.  F&M's  articles of
incorporation  do not include a provision  relating to the removal of directors.
Accordingly,  the removal of F&M directors is governed by the Virginia SCA which
provides that shareholders may remove directors with or without cause if, in the
case of F&M,  the number of votes cast to remove him  constitutes  a majority of
the outstanding shares of F&M common stock.

      Security.  All of Security's  directors are elected each year. Pursuant to
Security's bylaws,  Security's directors may be removed with or without cause by
a majority  vote of the  Security  shareholders,  or by a unanimous  vote of the
remaining directors.

Anti-Takeover Provisions

      Certain  provisions of the Virginia SCA and the articles of  incorporation
and bylaws of F&M may  discourage  an  attempt to acquire  control of F&M that a
majority of F&M's  shareholders  determined was in their best  interests.  These
provisions also may render the removal of one or all directors more difficult or
deter or delay corporate changes of control that the F&M board did not approve.

      Authorized Preferred Stock. The articles of incorporation of F&M authorize
the issuance of preferred  stock.  The F&M board may,  subject to applicable law
and the rules of the NYSE,  authorize  the issuance of  preferred  stock at such
times,  for such purposes and for such  consideration  as it may deem  advisable

                                       38
<PAGE>

without  further  shareholder  approval.  The issuance of preferred  stock under
certain  circumstances may have the effect of discouraging an attempt by a third
party to acquire  control of F&M by, for example,  authorizing the issuance of a
series of  preferred  stock with rights and  preferences  designed to impede the
proposed transaction.

      Supermajority Voting Provisions.  The Virginia SCA provides that, unless a
corporation's  articles  of  incorporation  provide  for a higher or lower vote,
certain  significant  corporate actions must be approved by the affirmative vote
of the holders of more than  two-thirds of the votes  entitled to be cast on the
matter.  Corporate actions  requiring a two-thirds vote include  amendments to a
corporation's  articles  of  incorporation,  adoption  of  plans  of  merger  or
exchange, sales of all or substantially all of a corporation's assets other than
in the  ordinary  course  of  business  and  adoption  of plans  of  dissolution
("Fundamental Actions"). The Virginia SCA provides that a corporation's articles
may either  increase  the vote  required to approve  Fundamental  Actions or may
decrease the required vote to not less than a majority of the votes  entitled to
be cast.

      The articles of  incorporation  of F&M provide that a  Fundamental  Action
shall be approved  by a vote of a majority  of all votes  entitled to be cast on
such  transactions  by each voting  group  entitled to vote on the  transaction,
provided  that the  transaction  has been approved and  recommended  by at least
two-thirds  of the  directors  in  office  at the  time  of  such  approval  and
recommendation.  If the transaction is not so approved and recommended, then the
transaction  shall be approved by the vote of 80% or more of all votes  entitled
to be cast on such  transactions  by each voting  group  entitled to vote on the
transaction.

      The  provisions of the articles of  incorporation  of F&M and the Virginia
SCA could  tend to make the  acquisition  of F&M more  difficult  to  accomplish
without the cooperation or favorable recommendation of the F&M board.

      Shareholder  Meetings.  Shareholders of F&M may not request that a special
meeting of shareholders be called,  while shareholders owning 25% or more of the
issued  and  outstanding  shares  of  Security  may call a  special  meeting  of
shareholders.

      Virginia  Anti-Takeover  Statutes.  Virginia has two anti-takeover
statutes in force, the Affiliated Transaction Statute and the Control Share
Acquisitions Statute.

      Affiliated  Transactions.  The Virginia SCA contains provisions  governing
"affiliated  transactions."  These include various transactions such as mergers,
share  exchanges,  sales,  leases,  or other  dispositions  of material  assets,
issuances  of  securities,   dissolutions,  and  similar  transactions  with  an
"interested  shareholder." An interested shareholder is generally the beneficial
owner  of more  than  10% of any  class of a  corporation's  outstanding  voting
shares.  During the three  years  following  the date a  shareholder  becomes an
interested   shareholder,   any  affiliated   transaction  with  the  interested
shareholder must be approved by both a majority of the "disinterested directors"
(those directors who were directors before the interested  shareholder became an
interested  shareholder  or who were  recommended  for election by a majority of
disinterested  directors)  and  by  the  affirmative  vote  of  the  holders  of
two-thirds of the  corporation's  voting  shares other than shares  beneficially
owned by the interested shareholder.  The foregoing requirements do not apply to
affiliated  transactions if, among other things, a majority of the disinterested
directors  approve the  interested  shareholder's  acquisition  of voting shares
making  such  a  person  an  interested  shareholder  before  such  acquisition.
Beginning three years after the shareholder  becomes an interested  shareholder,
the  corporation  may engage in an affiliated  transaction  with the  interested
shareholder if:

                                       39

<PAGE>
o        the  transaction  is  approved  by the  holders  of  two-thirds  of the
         corporation's  voting shares,  other than shares  beneficially owned by
         the interested shareholder,

o        the  affiliated  transaction  has been  approved  by a majority  of the
         disinterested directors, or

o        subject  to  certain   additional   requirements,   in  the  affiliated
         transaction  the holders of each class or series of voting  shares will
         receive   consideration   meeting   specified   fair  price  and  other
         requirements  designed to ensure that all shareholders receive fair and
         equivalent  consideration,  regardless  of  when  they  tendered  their
         shares.

      Control  Share  Acquisitions.  Under  the  Virginia  SCA's  control  share
acquisitions  law,  voting  rights of shares of stock of a Virginia  corporation
acquired by an acquiring  person or other entity at ownership  levels of 20%, 33
1/3%, and 50% of the  outstanding  shares may, under certain  circumstances,  be
denied. The voting rights may be denied:

o        unless  conferred  by a special  shareholder  vote of a majority of the
         outstanding  shares  entitled to vote for directors,  other than shares
         held  by  the  acquiring  person  and  officers  and  directors  of the
         corporation, or

o        among other exceptions,  such acquisition of shares is made pursuant to
         a merger agreement with the corporation or the  corporation's  articles
         of  incorporation  or by-laws  permit the  acquisition  of such  shares
         before the acquiring person's acquisition thereof.

      If authorized in the  corporation's  articles of incorporation or by-laws,
the statute also permits the  corporation  to redeem the acquired  shares at the
average per share price paid for them if the voting  rights are not  approved or
if the acquiring  person does not file a "control share  acquisition  statement"
with the corporation  within sixty days of the last  acquisition of such shares.
If voting rights are approved for control shares comprising more than 50% of the
corporation's  outstanding stock,  objecting  shareholders may have the right to
have their shares repurchased by the corporation for "fair value."

      The  provisions  of the  Affiliated  Transactions  Statute and the Control
Share Acquisition  Statute are only applicable to public  corporations that have
more than 300  shareholders.  Corporations  may  provide  in their  articles  of
incorporation or bylaws to opt-out of the Control Share Acquisition Statute, but
F&M has not done so.

Director and Officer Exculpation

      The  Virginia  SCA provides  that in any  proceeding  brought by or in the
right of a  corporation  or  brought  by or on  behalf  of  shareholders  of the
corporation,  the damages assessed against an officer or director arising out of
a single transaction,  occurrence or course of conduct may not exceed the lesser
of (a) the monetary amount, including the elimination of liability, specified in
the articles of incorporation or, if approved by the shareholders, in the bylaws
as a limitation on or  elimination  of the liability of the officer or director,
or (b) the  greater  of (1)  $100,000  or (2) the  amount  of cash  compensation
received  by the  officer or  director  from the  corporation  during the twelve
months  immediately  preceding  the act or  omission  for  which  liability  was
imposed.  The  liability  of an officer or  director  is not  limited  under the
Virginia  SCA or a  corporation's  articles of  incorporation  and bylaws if the
officer or director engaged in willful  misconduct or a knowing violation of the
criminal law or of any federal or state securities law.

      The articles of  incorporation of F&M provide that to the full extent that
the Virginia  SCA permits the  limitation  or  elimination  of the  liability of

                                       40
<PAGE>

directors or  officers,  a director or officer of F&M shall not be liable to F&M
or its shareholders  for monetary  damages in excess of one dollar.  There is no
similar provision in the articles of incorporation of Security.


Indemnification

      The  articles  of  incorporation  of F&M  provide  that to the full extent
permitted by the Virginia SCA and any other  applicable  law, F&M is required to
indemnify a director  or officer of F&M who is or was a party to any  proceeding
by reason of the fact that he is or was such a director  or officer or is or was
serving at the request of the corporation,  partnership,  joint venture,  trust,
employee  benefit  plan or  other  enterprise.  The F&M  board of  directors  is
empowered, by majority vote of a quorum of disinterested  directors, to contract
in advance to indemnify any director or officer.

      The articles of  incorporation of Security do not include a provision with
respect to the indemnification of officers and directors.  However, as permitted
by   Security's   bylaws,   each  director  of  Security  has  entered  into  an
indemnification   agreement  with  Security  whereby  Security  is  required  to
indemnify a director who is, or becomes a party,  or is  threatened to be made a
party to, any legal proceeding by reason of the fact the he is or was a director
of Security.

                        DESCRIPTION OF F&M CAPITAL STOCK

      F&M is authorized to issue  30,000,000  shares of common stock,  par value
$2.00 per share, and 5,000,000  shares of serial  preferred  stock,  without par
value, which may be issued in series with such powers, designations,  and rights
as may be established  from time to time by the Board of Directors.  On December
31, 1998, F&M had issued and outstanding  21,871,674  shares of F&M common stock
held by 8,190 shareholders of record. All outstanding shares of F&M common stock
are fully paid and nonassessable. No shares of preferred stock have been issued.

Common Stock

      Holders of shares of F&M common  stock are  entitled to receive  dividends
when and as declared by the board of directors  out of funds  legally  available
therefor.  F&M's  ability to pay  dividends is  dependent  upon its earnings and
financial  condition and certain legal requirements.  Specifically,  the Federal
Reserve has stated that bank holding  companies  should not pay dividends except
out of current earnings and unless the prospective rate of earnings retention by
the company appears consistent with its capital needs, asset quality and overall
financial  condition.  In addition,  Virginia law precludes any  distribution to
shareholders  if, after  giving it effect,  (a) F&M would not be able to pay its
debts as they  become due in the usual  course of  business;  or (b) F&M's total
assets would be less than the sum of its total  liabilities plus the amount that
would be needed, if F&M were to be dissolved at the time of the distribution, to
satisfy  the  preferential   rights  upon  dissolution  of  shareholders   whose
preferential  rights are superior to those receiving the distribution.  Upon the
liquidation, dissolution or winding up of F&M, whether voluntary or involuntary,
holders of F&M common stock are entitled to share ratably, after satisfaction in
full  of  all  liabilities,  in  all  remaining  assets  of  F&M  available  for
distribution.  The  dividend  and  liquidation  rights of F&M  common  stock are
subject to the rights of any preferred stock that may be issued and outstanding.

      Holders  of F&M  common  stock are  entitled  to one vote per share on all
matters submitted to shareholders.  There are no cumulative voting rights in the
election of directors or preemptive rights to purchase  additional shares of any
class of F&M's capital stock.  Holders of F&M common stock have no conversion or
redemption rights. The shares of F&M common stock presently outstanding are, and

                                       41
<PAGE>

those shares of F&M common stock to be issued in connection with the merger will
be when issued, fully paid and nonassessable.
F&M common stock is listed and traded on the NYSE.


Preferred Stock

      The board of directors of F&M is empowered to authorize the  issuance,  in
one or more  series,  of  shares  of  preferred  stock at such  times,  for such
purposes and for such consideration as it may deem advisable without shareholder
approval.  The F&M board is also  authorized  to fix the  designations,  voting,
conversion, preference and other relative rights, qualifications and limitations
of any such series of preferred stock.

      The F&M board of directors,  without shareholder  approval,  may authorize
the issuance of one or more series of preferred stock with voting and conversion
rights  which  could  adversely  affect the voting  power of the  holders of F&M
common stock and, under certain  circumstances,  discourage an attempt by others
to gain control of F&M.

      The  creation  and  issuance  of any series of  preferred  stock,  and the
relative  rights,  designations  and  preferences  of such  series,  if and when
established,  will depend upon, among other things,  the future capital needs of
F&M, then existing market  conditions and other factors that, in the judgment of
the F&M board, might warrant the issuance of preferred stock.

                                  OTHER MATTERS

      The Security  board does not intend to bring any matter before the special
meeting other than as specifically set forth in the notice of special meeting of
shareholders,  nor does it know of any matter to be brought  before the  special
meeting by others.  If,  however,  any other  matters  properly  come before the
special  meeting,  it is the intention of each of the  proxyholders to vote such
proxy in  accordance  with the decision of a majority of the  Security  board of
directors.

                                     EXPERTS

      The  consolidated  financial  statements of F&M incorporated in this proxy
statement/prospectus  by reference  to F&M's Annual  Report on Form 10-K for the
year ended  December  31, 1997 have been so  incorporated  in reliance  upon the
report of Yount, Hyde & Barbour, P.C., independent certified public accountants,
incorporated by reference herein, and upon the authority of such firm as experts
in auditing and accounting.

      The  financial   statements  of  Security   incorporated   in  this  proxy
statement/prospectus   by  reference  to   Security's   1997  Annual  Report  to
Shareholders  and included  herein as Appendix IV have been so  incorporated  in
reliance upon the report of Yount, Hyde & Barbour,  P.C.,  independent certified
public accountants,  incorporated by reference herein, and upon the authority of
such firm as experts in auditing and accounting.

                                 LEGAL OPINIONS

      The  validity of the shares of F&M common  stock  offered  hereby is being
passed  upon for F&M by LeClair  Ryan,  A  Professional  Corporation,  Richmond,
Virginia.  LeClair Ryan will  deliver an opinion to F&M and Security  concerning
certain  federal  income tax  consequences  of the  merger.  See "The  Merger --
Material Federal Income Tax Consequences" on page 28.

      Certain matters relating to the merger will be passed upon for Security by
Kaufman & Canoles, Norfolk, Virginia.

                                       42
<PAGE>



                       WHERE YOU CAN FIND MORE INFORMATION

      F&M and Security file reports, proxy statements and other information with
the  Securities  and  Exchange  Commission  in the case of F&M and the  Board of
Governors of the Federal  Reserve  System in the case of Security.  You may read
and copy any  reports,  statements  or other  information  that F&M files at the
Commission's public reference rooms in Washington,  D.C., New York, New York and
Chicago,  Illinois.  Please call the  Commission at  1-800-SEC-0330  for further
information on the public reference rooms.  Information on F&M is also available
to the public through the Commission's website at "http://www.sec.gov."  You may
read and  copy  reports,  proxy  statements  and  other  information  concerning
Security at the Federal Reserve, Division of Banking Supervision and Regulation,
20th Street and Constitution,  Washington,  D.C. 20551. The information may also
be obtained from the Federal Reserve by writing to the referenced  address or by
calling (202) 452-3244.  Reports,  proxy statements and other  information about
F&M and  Security  are also  available  to the public from  commercial  document
retrieval services and also should be available for inspection at the offices of
the New York Stock Exchange for F&M, and Nasdaq for Security.

      F&M has filed a  Registration  Statement on Form S-4 to register  with the
Commission  the  shares of F&M common  stock to be issued to you in the  merger.
This  document  is a part  of  the  Registration  Statement  and  constitutes  a
prospectus of F&M and a proxy statement of Security for the special meeting.  As
allowed by Commission  rules, this document does not contain all the information
that shareholders can find in the Registration  Statement or the exhibits to the
Registration Statement.

      The  Commission  allows F&M and  Security to  "incorporate  by  reference"
information into this proxy statement/prospectus, which means that the companies
can disclose  important  information to you by referring you to another document
filed  separately with the Commission and the Federal  Reserve.  The information
incorporated   by   reference   is   deemed   to  be  a  part  of   this   proxy
statement/prospectus,  except  for any  information  superseded  by  information
contained   directly   in   this   proxy   statement/prospectus.    This   proxy
statement/prospectus  incorporates  by reference  the  documents set forth below
that F&M and Security have previously  filed with the Commission and the Federal
Reserve.  These  documents  contain  important  business  information  about the
companies and their financial condition.

<TABLE>
<CAPTION>

F&M's Commission Filings (File No. 0-05929)           Period
<S>                                                   <C>
Annual Report on Form 10-K......................      Year ended December 31, 1997

Quarterly Reports on Form 10-Q..................      Quarters ended September 30, 1998,
                                                      June 30, 1998, and March 31, 1998

Current Reports on Form 8-K.....................      Dated November 9, 1998, June 1,
                                                      1998 and April 3, 1998 (two reports)
<CAPTION>
Security's Federal Reserve Filings                    Period
<S>                                                   <C>
Annual Report on Form 10-KSB....................      Year ended December 31, 1997

Quarterly Reports on Form 10-QSB................      Quarters ended September 30, 1998,  June
                                                      30, 1998 and March 31, 1998

Current Report on Form 8-K......................      Dated November 24, 1998

1997 Annual Report to Shareholders..............      Year ended December 31, 1997
</TABLE>

                                       43
<PAGE>

      F&M and Security also incorporate by reference  additional  documents that
either may file with the Commission or the Federal  Reserve  between the date of
this  document  and the date of the  special  meeting.  These  include  periodic
reports, such as annual reports,  quarterly reports and current reports, as well
as proxy statements.

      F&M has supplied all information contained or incorporated by reference in
this  document  relating to F&M and Security  has supplied all such  information
relating to Security.

      Security may have sent you some of the documents incorporated by reference
by  Security,  but you can obtain any of them  through  Security  or the Federal
Reserve.  Documents  incorporated by reference by F&M are available  through the
Commission or the Commission's  website stated above or from F&M without charge,
excluding  all  exhibits  unless  specifically  incorporated  by reference as an
exhibit to this document.  Shareholders of F&M or Security may obtain  documents
incorporated  by reference in this document by requesting  them in writing or by
telephone from F&M or Security at the following addresses:

      F&M NATIONAL CORPORATION
      P. O. Box 2800
      9 Court Square
      Winchester, Virginia 22604
      Telephone:  (540) 665-4240
      Attention:  Secretary

      SECURITY BANK CORPORATION
      8780 Centreville Road
      Manassas, Virginia 20110
      Telephone: (703) 361-1986
      Attention:  Assistant Secretary

      If you would like to request documents from either F&M or Security, please
do so by March 3, 1999 in order to receive  timely  delivery  of such  documents
prior to the special meeting.

      You should  rely only on the  information  contained  or  incorporated  by
reference in this document to vote your shares at the special  meeting.  F&M and
Security  have not  authorized  anyone to provide you with  information  that is
different  from what is  contained  in this  document.  This  document  is dated
February 2, 1999. You should not assume that the  information  contained in this
document  is  accurate  as of any date  other than that date,  and  neither  the
mailing of this document to shareholders nor the issuance of F&M common stock in
the merger creates any implication to the contrary.

                                       44

<PAGE>



                                                                      APPENDIX I



                      AGREEMENT AND PLAN OF REORGANIZATION

                                       AND

                                 PLAN OF MERGER





<PAGE>




                      AGREEMENT AND PLAN OF REORGANIZATION


      THIS AGREEMENT AND PLAN OF  REORGANIZATION  (the  "Agreement") is made and
entered into as of November 25, 1998, by and among F&M NATIONAL  CORPORATION,  a
Virginia  corporation  ("F&M"),  F&M  BANK-NORTHERN   VIRGINIA,  a  wholly-owned
Virginia banking subsidiary of F&M ("F&M Bank-Northern Virginia"),  and SECURITY
BANK CORPORATION, a Virginia banking corporation ("Security").

                                   WITNESSETH:

       WHEREAS,  the  respective  Boards of Directors  of F&M and Security  have
approved the affiliation of their companies  through the merger of Security with
and into F&M  Bank-Northern  Virginia,  pursuant to and subject to the terms and
conditions of this Agreement and the Plan of Merger in the form attached  hereto
as Exhibit A (the "Plan of Merger"); and

      WHEREAS,   the  parties   desire  to  provide   for  certain   conditions,
representations,  warranties and agreements in connection with the  transactions
contemplated hereby.

      NOW, THEREFORE, in consideration of the mutual covenants, representations,
warranties and  agreements  set forth herein,  and intending to be legally bound
hereby, the parties agree as follows:

                                    ARTICLE 1
                         THE MERGER AND RELATED MATTERS

      1.1   The Merger

       Subject to the terms and conditions of this  Agreement,  at the Effective
Date as defined in Section  1.5 hereof,  Security  shall be merged with and into
F&M  Bank-Northern  Virginia  pursuant to the Plan of Merger  attached hereto as
Exhibit  A and  made  a part  hereof  (the  "Merger").  The  separate  corporate
existence of Security shall thereupon cease, and F&M Bank-Northern Virginia will
be the  surviving  corporation  in the  Merger  and its name  shall  remain  F&M
Bank-Northern  Virginia (F&M Bank-Northern Virginia as existing on and after the
Effective  Date is sometimes  referred to as the  "Continuing  Bank").  From and
after the Effective  Date, the Merger shall have the effect set forth in Section
13.1-721 of the Virginia Stock Corporation Act (the "VSCA").

      1.2   Conversion of Security Stock

       (a) At the Effective Date, by virtue of the Merger and without any action
on the part of the holders thereof,  each share of common stock, par value $5.00
per  share,  of  Security  ("Security  Common  Stock")  issued  and  outstanding
immediately  prior to the Effective Date shall cease to be outstanding and shall
be converted into and exchanged for shares of common stock,  par value $2.00 per
share, of F&M ("F&M Common Stock"),  whose aggregate market value equals $17.25,
plus cash for fractional shares,  pursuant to the terms and conditions set forth
in the Plan of Merger (the "Exchange Ratio").



<PAGE>




      (b) In the event F&M changes (or  establishes  a record date for changing)
the number of shares of F&M Common  Stock  issued and  outstanding  prior to the
Effective Date as a result of a stock split, stock dividend, recapitalization or
similar  transaction  with respect to the  outstanding  F&M Common Stock and the
record date  therefor  shall be prior to the  Effective  Date,  appropriate  and
proportional adjustments will be made to the Exchange Ratio.

      1.3   Board of Directors of the Continuing Bank; Officers and Employees

     (a) At the Effective Date, the Board of Directors of the Continuing Bank
shall consist of all the current directors of F&M Bank-Northern Virginia and
four of the current directors of Security designated by Security and approved by
F&M. All current directors of Security who are not appointed to the Board of
Directors of the Continuing Bank will be offered a position on the Continuing
Bank's Advisory Board.

       (b) The officers and employees of Security will be offered positions with
the  Continuing  Bank at salaries not less than the salaries  such persons shall
have with Security immediately prior to the Effective Date.

      1.4   Security Stock Options

     From and after the Effective Date, all employee and director stock options
to purchase shares of Security Common Stock (each, a "Security Stock Option"),
that are then outstanding and unexercised, shall be converted into and become
options to purchase shares of F&M Common Stock, and F&M shall assume each such
Security Stock Option in accordance with the terms of the plan and agreement by
which it is evidenced; provided, however, that from and after the Effective Date
(i) each such Security Stock Option assumed by F&M may be exercised solely to
purchase shares of F&M Common Stock, (ii) the number of shares of F&M Common
Stock purchasable upon exercise of such Security Stock Option shall be equal to
the number of shares of Security Common Stock that were purchasable under such
Security Stock Option immediately prior to the Effective Date multiplied by the
Exchange Ratio and rounding down to the nearest whole share, with cash being
paid for any fractional share interest that otherwise would be purchasable, and
(iii) the per share exercise price under each such Security Stock Option shall
be adjusted by dividing the per share exercise price of each such Security Stock
Option by the Exchange Ratio, and rounding down to the nearest cent. The terms
of each Security Stock Option shall, in accordance with its terms, be subject to
further adjustment as appropriate to reflect any stock split, stock dividend,
recapitalization or other similar transaction with respect to F&M Common Stock
on or subsequent to the Effective Date.

      1.5   Closing; The Effective Date

     The Merger shall become effective on the date and at the time shown on the
Certificate of Merger issued by the Virginia State Corporation Commission
effecting the Merger (the "Effective Date"). Subject to the satisfaction or
waiver of the conditions set forth in Article V, the parties shall use their
reasonable best efforts to cause the Effective Date to occur on the first day of
the month following the month in which the conditions set forth in Article V
have been satisfied or waived in accordance with the terms of this Agreement or
on such other date as the parties may agree in writing. All documents required
by this Agreement to be delivered at or prior to the Effective Date will
exchanged by the parties at the closing of the Merger (the "Merger Closing"),
which shall be held on or before the Effective Date. At or after the Merger
Closing, F&M, F&M Bank-Northern Virginia and Security shall execute and deliver
to the Virginia State Corporation Commission Articles of Merger containing the
Plan of Merger.

<PAGE>

      1.6   Definitions

      Any term defined in this  Agreement  and the Plan of Merger shall have the
meaning ascribed to it for purposes of this Agreement. In addition:

      (a) The term "Knowledge"  means the knowledge,  after due inquiry,  of any
"Executive  Officer" of such party,  as such term is defined in Regulation O (12
C.F.R. 215).

      (b) The term "Material Adverse Effect" means, with respect to a party, any
effect  that (i) has or is  reasonably  likely to have a  material  and  adverse
effect upon the  financial  position,  results of  operations or business of the
party and its  subsidiaries,  taken as a whole, or (ii) would materially  impair
the party's ability to perform its obligations under this Agreement or otherwise
materially  threaten  or  materially  impede  the  consummation  of the  Merger;
provided that Material  Adverse Effect shall not be deemed to include the impact
of (a)  changes  in  banking  and  similar  laws  of  general  applicability  or
interpretations thereof by courts or governmental authorities, or (b) changes in
generally accepted accounting principles or regulatory  requirements  applicable
to financial institutions.

     (c) The term "Previously Disclosed" shall mean information set forth in a
schedule (a "Disclosure Schedule", which shall be arranged in sections
corresponding to the sections of this Agreement) from one party to the other
party delivered and dated on the same date hereof, setting forth, among other
things, items the disclosure of which is necessary or appropriate in relation to
any or all of such party's representations and warranties. Any matter included,
whether aggregated or not, in the Security Financial Statements or the F&M
Financial Statements, as the case may be, shall be deemed to be Previously
Disclosed.

                                    ARTICLE 2
                      REPRESENTATIONS AND WARRANTIES OF Security

      Security represents and warrants to F&M as follows:

      2.1   Organization, Standing and Power of Security

     Security is a Virginia chartered banking corporation duly organized,
validly existing and in good standing under the laws of Virginia. Security has
the corporate power and authority to carry on its business in Virginia as now
conducted and to own and operate its assets, properties and business; and
Security has the corporate power and authority to execute, deliver and perform
its obligations under this Agreement and the Stock Option Agreement dated
November 10, 1998, by and between Security and F&M (the "Option Agreement"), and
to consummate the transactions contemplated hereby and thereby (subject to
receipt of the approval of the shareholders of Security of this Agreement and
the Plan of Merger).

      2.2   Authorized and Effective Agreements

     (a) Subject to receipt of the approval of the shareholders of Security of
this Agreement and the Plan of Merger, this Agreement, the Plan of Merger and
the Option Agreement and the transactions contemplated hereby and thereby have
been authorized by all necessary corporate action on the part of Security on or
prior to the date hereof. Subject also to receipt of the approval of the
shareholders of Security of this Agreement and the Plan of Merger, this
Agreement, the Plan of Merger and the Option Agreement are valid and legally
binding obligations of Security, enforceable against Security in accordance with
their respective terms (except as enforceability may be limited by applicable
bankruptcy, insolvency, fraudulent transfer, reorganization, moratorium and
similar laws affecting the enforcement of rights of creditors or by general
principles of equity).


<PAGE>

     (b) Neither the execution and delivery of this Agreement, the Plan of
Merger and the Option Agreement, nor the consummation of the transactions
contemplated herein or therein, nor compliance by Security with any of the
provisions hereof or thereof will: (i) conflict with or result in a breach of
any provision of the Articles of Incorporation or Bylaws of Security; (ii)
except as Previously Disclosed in its Disclosure Schedule, constitute or result
in the breach of any term, condition or provision of, or constitute a default
under, or give rise to any right of termination, cancellation or acceleration
with respect to, or result in the creation of any lien, charge or encumbrance
upon, any property or asset of Security pursuant to any (A) note, bond,
mortgage, indenture, or (B) material license, agreement or other instrument or
obligation; or (iii) subject to the receipt of all required regulatory and
shareholder approvals, violate any order, writ, injunction, decree, statute,
rule or regulation applicable to Security.

      2.3   Capital Structure

     The authorized capital stock of Security consists of 3,000,000 shares of
common stock, par value $5.00 per share, of which 967,236 shares were issued and
outstanding as of November 20, 1998. All outstanding shares of Security Common
Stock have been duly authorized and validly issued, are fully paid and
nonassessable and have not been issued in violation of the preemptive rights of
any person. As of November 20, 1998, there are options held by employees and
directors of Security that represent rights to purchase a total of 77,100 shares
of Security Common Stock and there are outstanding warrants held by certain
individuals that represent rights to purchase a total of 12,241 shares of
Security Common Stock.

      2.4   Rights

     As of the date of this Agreement, there are not any shares of capital stock
of Security reserved for issuance, or any outstanding or authorized options,
warrants, rights, agreements, convertible or exchangeable securities, or other
commitments, contingent or otherwise, relating to its capital stock pursuant to
which Security is or may become obligated to issue shares of capital stock or
any securities convertible into, exchangeable for, or evidencing the right to
subscribe for, any shares of its capital stock (collectively, "Rights"), except
as contemplated by the Option Agreement and as Previously Disclosed in its
Disclosure Schedule (which shall include copies of the stock option plans and
individual stock option agreements pursuant to which employees and directors of
Security may exercise stock options and a list of those persons that hold
outstanding warrants to purchase Security Common Stock).

      2.5   Financial Statements; Books and Records; Minute Books

     The Security Financial Statements (as defined below) fairly present or will
fairly present, as the case may be, the financial position of Security as of the
dates indicated and the results of operations, changes in stockholders' equity
and statements of cash flows for the periods or as of the dates set forth
therein (subject, in the case of unaudited interim statements, to normal
recurring audit adjustments that are not material in amount or effect) in
conformity with generally accepted accounting principles applicable to financial
institutions applied on a consistent basis. The books and records of Security
fairly reflect in all material respects the transactions to which it is a party
or by which its properties are subject or bound. Such books and records have
been properly kept and maintained and are in compliance in all material respects
with all applicable legal and accounting requirements. The minute books of
Security contain accurate records of all corporate actions of its shareholders
and Board of Directors (including committees of its Board of Directors). The
Security Financial Statements shall mean (i) the statements of financial
condition of Security as of December 31, 1997 and 1996 and the related
statements of income, stockholders' equity and cash flows for each of the three
years ended December 31, 1997, 1996 and 1995 (including related notes and
schedules, if any) and (ii) the balance sheets of Security and related
statements of income, stockholders' equity and cash flows (including related
notes and schedules, if any) with respect to quarterly periods ended subsequent
to December 31, 1997.


<PAGE>

      2.6   Absence of Material Changes and Events

     Since September 30, 1998 and except as Previously Disclosed in its
Disclosure Schedule, there has not been any change in the financial condition or
results of operations of Security which, individually or in the aggregate, has
had or is reasonably likely to have a Material Adverse Effect. Notwithstanding
the foregoing, any adjustments after the date hereof to the allowance for loan
losses of Security made at the request of F&M in order to bring the allowance
for loan losses of Security into compliance with F&M's loan policies shall not
be deemed a material change or event.

      2.7   Absence of Undisclosed Liabilities

     Security has not incurred any liability (contingent or otherwise) that is
material to Security that, when combined with all similar liabilities, would be
material to Security, except as Previously Disclosed in its Disclosure Schedule
or as disclosed in the Security Financial Statements and except for liabilities
incurred in the ordinary course of business consistent with past practice since
the date of the most recent Security Financial Statements.

      2.8   Legal Proceedings; Compliance with Laws

     Except as Previously Disclosed in its Disclosure Schedule, there are no
actions, suits or proceedings instituted or pending or, to the Knowledge of
Security, threatened against Security or against any property, asset, interest
or right of Security, or against any officer, director or employee of Security
that would, if determined adversely to Security, have a Material Adverse Effect
on Security. To the Knowledge of Security, it has complied in all material
respects with all laws, ordinances, requirements, regulations or orders
applicable to its business (including environmental laws, ordinances,
requirements, regulations or orders).

      2.9   Tax Matters

     Security has filed all federal, state and local tax returns and reports
("Tax Returns") required to be filed, and all such Tax Returns were correct and
complete in all material respects. All Taxes (as defined below) owed by Security
have been paid, are reflected as a liability in the Security Financial
Statements, or are being contested in good faith and have been Previously
Disclosed in its Disclosure Schedule. Except as Previously Disclosed, no tax
return or report of Security is under examination by any taxing authority or the
subject of any administrative or judicial proceeding, and no unpaid tax
deficiency has been asserted against Security by any taxing authority. As used
herein, "Taxes" mean all taxes, charges, fees, levies or other assessments,
including, without limitation, all income, gross receipts, sales, use, ad
valorem, goods and services, capital, transfer, franchise, profits, license,
withholding, payroll, employment, employer health, excise, estimated, severance,
stamp, occupation, property or other taxes, custom duties, fees, assessments or
chargers of any kind whatsoever, together with any interest and any penalties,
additions to tax or additional amounts imposed by any taxing authority.


<PAGE>



      2.10  Property

     Except as Previously Disclosed in its Disclosure Schedule or reserved
against in the Security Financial Statements, Security has good and marketable
title free and clear of all material liens, encumbrances, charges, defaults or
equitable interests to all of the properties and assets, real and personal,
reflected in the balance sheet included in the Security Financial Statements as
of September 30, 1998 or acquired after such date. To the Knowledge of Security,
all buildings, and all fixtures, equipment, and other property and assets that
are material to its business, held under leases or subleases, are held under
valid instruments enforceable in accordance with their respective terms, subject
to bankruptcy, insolvency, reorganization, moratorium and similar laws. To the
Knowledge of Security, the buildings, structures, and appurtenances owned,
leased, or occupied by it are in good operating condition and in a state of good
maintenance and repair and comply with applicable zoning and other municipal
laws and regulations, and there are no latent defects therein.

      2.11  Employee Benefit Plans

     (a) Security has Previously Disclosed in its Disclosure Schedule all
employee benefit plans and programs, including without limitation: (i) all
retirement, savings and other pension plans; (ii) all health, severance,
insurance, disability and other employee welfare plans; and (iii) all
employment, vacation and other similar plans, all bonus, stock option, stock
purchase, incentive, deferred compensation, supplemental retirement, severance
and other employee benefit plans, programs or arrangements, and all employment
or compensation arrangements, in each case for the benefit of or relating to
current and former employees of Security (collectively, the "Security benefit
Plans").

     (b) None of the Security Benefit Plans is a "multi-employer plan" as
defined in section 3(37) of the Employee Retirement Income Security Act of 1974,
as amended ("ERISA").

     (c) Except as Previously Disclosed in its Disclosure Schedule, all Security
Benefit Plans are in compliance in all material respects with applicable laws
and regulations, and Security has administered the Security Benefit Plans in
accordance with applicable laws and regulations in all material respects.

     (d) Each Security Benefit Plan that is intended to be qualified under
Section 401(a) of the Internal Revenue Code of 1986, as amended (the "Code") has
been determined by the Internal Revenue Service to be so qualified, as reflected
in a current favorable determination letter.

     (e) Security has made available to F&M copies of all Security Benefit Plans
and, where applicable, summary plan descriptions, and annual reports required to
be filed within the last three years pursuant to ERISA or the Code with respect
to the Security Benefit Plans.

     (f) To the Knowledge of Security, it has not engaged in any prohibited
transactions, as defined in Code section 4975 or ERISA section 406, with respect
to any Security Employee Benefit Plan that is a pension plan as defined in
Section 3(2) of ERISA.

      (g)  There  are no  actions,  suits,  investigations  or  claims  pending,
threatened or anticipated  (other than routine claims for benefits) with respect
to any Security Benefit Plans.

     (h) No compensation or benefit that is or will be payable in connection
with the transactions contemplated by this Agreement will be characterized as an
"excess parachute payment" within the meaning of Code section 280G. Except as
Previously Disclosed in its Disclosure Schedule, no Security Benefit Plan
contains any provision which would give rise to any severance, termination or
other payments or liabilities as a result of the transactions contemplated by
this Agreement.


<PAGE>

     (i) Security has not established and does not maintain a welfare plan, as
defined in ERISA section 3(1), that provides benefits to an employee at the
expense of Security after a termination of employment, except as required by the
Consolidated Omnibus Budget Reconciliation Act of 1985.

      2.12  Insurance

     Security currently maintains insurance in amounts reasonably necessary for
its operations and, to the Knowledge of Security, similar in scope and coverage
to that maintained by other entities similarly situated. Since January 1, 1998
and except as Previously Disclosed, Security has not received any notice of a
premium increase or cancellation or a failure to renew with respect to any
insurance policy or bond and, within the last three fiscal years, and Security
has not been refused any insurance coverage sought or applied for, and Security
has no reason to believe that existing insurance coverage cannot be renewed as
and when the same shall expire upon terms and conditions as favorable as those
presently in effect, other than possible increases in premiums or unavailability
of coverage that do not result from any extraordinary loss experience on the
part of Security.

      2.13  Loans; Allowance for Loan Losses

     (a) Except as Previously Disclosed in its Disclosure Schedule, to the
Knowledge of Security each loan reflected as an asset in the Security Financial
Statements (i) is evidenced by notes, agreements or evidences of indebtedness
which are true, genuine and what they purport to be, (ii) to the extent secured,
has been secured by valid liens and security interests which have been
perfected, (iii) is the legal, valid and binding obligation of the obligor and
any guarantor, enforceable in accordance with its terms, subject to bankruptcy,
insolvency, fraudulent conveyance and other laws of general applicability
relating to or affecting creditors' rights and to general equity principles, and
no defense, offset or counterclaim has been asserted with respect to any such
loan which if successful could have a Material Adverse Effect, and (iv) in all
material respects was made in accordance with Security's standard loan policies.

     (b) Security has Previously Disclosed in its Disclosure Schedule the
aggregate amounts as of a recent date of all loans, losses, advances, credit
enhancements, other extensions of credit, commitments and interest-bearing
assets of Security that have been classified by any bank examiner (whether
regulatory or internal) as "Other Loans Specially Mentioned," "Special Mention,"
"Substandard," "Doubtful," "Loss," "Classified" or words of similar import, and
Security shall promptly on a periodic basis inform F&M of any such
classification arrived at any time after the date hereof.

      (c) The real  property  classified  as other real  estate  owned  ("OREO")
included in non-performing assets is carried net of reserve at the lower of cost
or market value based on independent appraisals.

     (d) The allowance for loan losses reflected on the statements of financial
condition included in the Security Financial Statements, as of their respective
dates, is adequate in all material respects under the requirements of generally
accepted accounting principles and regulatory accounting principles to provide
for reasonably anticipated losses on outstanding loans; provided, however, the
parties acknowledge and agree that F&M may request Security to make certain
adjustments after the date hereof to its allowance for loan losses in order to
bring the allowance for loan losses of Security into compliance with F&M's loan
policies.


<PAGE>

      2.14  Environmental Matters

     (a) Except as Previously Disclosed in its Disclosure Schedule, Security is
in substantial compliance with all Environmental Laws (as defined below).
Security has not received any communication alleging that Security is not in
such compliance and there are no present circumstances that would prevent or
interfere with the continuation of such compliance.

     (b) Security has not received notice of pending, and is not aware of any
threatened, legal, administrative, arbitral or other proceedings, asserting
Environmental Claims (as defined below) or other claims, causes of action or
governmental investigations of any nature, seeking to impose, or that could
result in the imposition of, any material liability arising under any
Environmental Laws upon (i) Security, (ii) any person or entity whose liability
for any Environmental Claim Security has or may have retained either
contractually or by operation of law, (iii) any real or personal property owned
or leased by Security, or any real or personal property which Security has been,
or is, judged to have managed or to have supervised or to have participated in
the management of, or (iv) any real or personal property in which Security holds
a security interest securing a loan recorded on the books of Security. Security
is not subject to any agreement, order, judgment, decree or memorandum by or
with any court, governmental authority, regulatory agency or third party
imposing any such liability.

     (c) With respect to all real and personal property owned or leased by
Security, or all real and personal property which Security has been, or is,
judged to have managed or to have supervised or to have participated in the
management of, Security will promptly provide F&M with access to copies of any
environmental audits, analyses and surveys that have been prepared relating to
such properties (a list of which will be Previously Disclosed in its Disclosure
Schedule). Security is in compliance in all material respects with all
recommendations contained in any such environmental audits, analyses and
surveys.

     (d) To the best of Security's Knowledge, there are no past or present
actions, activities, circumstances, conditions, events or incidents that could
reasonably form the basis of any Environmental Claim or other claim or action or
governmental investigation that could result in the imposition of any liability
arising under any Environmental Laws against Security or against any person or
entity whose liability for any Environmental Claim Security has or may have
retained or assumed either contractually or by operation of law.

      (e) For purposes of this  Agreement,  the  following  terms shall have the
following meanings:

            (1)  "Environmental   Claim"  means  any  written  notice  from  any
      governmental   authority  or  third  party  alleging  potential  liability
      (including,  without  limitation,  potential  liability for  investigatory
      costs,  clean-up,  governmental response costs, natural resources damages,
      property damages,  personal  injuries or penalties)  arising out of, based
      upon, or resulting from the presence, or release into the environment,  of
      any Materials of Environmental Concern.

            (2)  "Environmental  Laws" means all applicable  federal,  state and
      local laws and  regulations,  including  the  Comprehensive  Environmental
      Response,  Compensation and Liability Act of 1980, as amended, that relate
      to pollution or protection of human health or the environment.


<PAGE>

            (3)  "Materials  of   Environmental   Concern"   means   pollutants,
      contaminants,  wastes, toxic substances,  petroleum and petroleum products
      and any other materials regulated under Environmental Laws.

      2.15  Takeover Laws; No Dissenters Rights

     Security has taken all action necessary to exempt this Agreement, the Stock
Option Agreement and the transactions contemplated hereby and thereby from the
requirements of any "control share," "fair price," "affiliate transaction" or
other anti-takeover laws and regulations of any state, including without
limitation Sections 13.1-725 through 13.1-728 of the VSCA (because a majority of
Security's disinterested directors approved such transactions for such purposes
prior to any "determination date" with respect to F&M) and Sections 13.1-728.1
through 13.1-728.9 of the VSCA. Holders of Security Common Stock do not have
dissenters' rights in connection with the Merger.

      2.16  Brokers

     Other than the financial advisory services performed for Security by Scott
& Stringfellow, Inc. (on terms disclosed to F&M), neither Security nor any of
its subsidiaries, nor any of their respective officers, directors or employees
has employed any broker, finder or financial advisor or incurred any liability
for any fees or commissions in connection with transactions contemplated by this
Agreement.

      2.17  Securities Reports

     Security has filed with the Board of Governors of the Federal Reserve
System (the "FRB") all required forms, reports and documents required under the
Securities Exchange Act or 1934, as amended (the "Exchange Act"). Security's
Annual Report on Form 10-KSB for the year ended December 31, 1997, and all other
reports, definitive proxy statements or documents filed or to be filed by it
subsequent to December 31, 1997 under Section 13(a), 13(c), 14 or 15(d) of the
Exchange Act, in the form filed, or to be filed, with the FRB (i) complied or
will comply in all material respects as to form with the applicable requirements
under the Exchange Act and (ii) did not and will not contain any untrue
statement of a material fact or omit to state a material fact required to be
stated therein or necessary to make the statements made therein, in light of the
circumstances under which they were made, not misleading.

      2.18  Statements True and Correct

     When the Registration Statement on Form S-4 (the "Registration Statement")
to be filed by F&M with the SEC shall become effective, and at all times
subsequent thereto up to and including the Security shareholders' meeting called
to vote upon the Merger, such Registration Statement and all amendments or
supplements thereto, with respect to all information set forth therein furnished
by Security relating to Security, (i) shall comply in all material respects with
the applicable provisions of the federal and state securities laws, and (ii)
shall not contain any untrue statement of a material fact or omit to state a
material fact required to be stated therein or necessary to make the statements
contained therein, in light of the circumstances under which they are made, not
misleading.


<PAGE>



                                    ARTICLE 3
                      REPRESENTATIONS AND WARRANTIES OF F&M

      F&M represents and warrants to Security as follows:

      3.1   Organization, Standing and Power

      F&M is a corporation duly organized, validly existing and in good standing
under the laws of the Commonwealth of Virginia.  F&M has the corporate power and
authority to carry on its business as now  conducted  and to own and operate its
assets,  properties and business;  and F&M has the corporate power and authority
to execute,  deliver and perform its  obligations  under this  Agreement  and to
consummate the  transactions  contemplated  hereby.  F&M is duly registered as a
bank holding company under the Bank Holding Company Act of 1956.

      3.2   Organization, Standing and Power of F&M Subsidiaries

      Each subsidiary of F&M (the "F&M Subsidiaries" and, collectively with F&M,
the "F&M  Companies") is a duly organized  corporation,  validly existing and in
good standing in their respective states of  incorporation.  Each F&M Subsidiary
(i) has full  corporate  power and  authority  to carry on its  business  as now
conducted  and (ii) is duly  qualified  to do business  in the states  where its
ownership  or leasing of property or the conduct of its business  requires  such
qualification  and where the failure to so qualify would have a material adverse
effect on F&M on a consolidated  basis. The outstanding  shares of capital stock
of each of the F&M Subsidiaries  are validly issued and outstanding,  fully paid
and  nonassessable  and all such shares are directly or indirectly  owned by F&M
free and clear of all liens, claims and encumbrances or preemptive rights of any
person.

      3.3   Authorized and Effective Agreement

      (a)  This   Agreement  and  the  Plan  of  Merger  and  the   transactions
contemplated  hereby and thereby have been authorized by all necessary corporate
action on the part of F&M.  This  Agreement and the Plan of Merger are valid and
legally binding  obligations of F&M,  enforceable against F&M in accordance with
their  respective terms (except as  enforceability  may be limited by applicable
bankruptcy,  insolvency,  fraudulent  transfer,  reorganization,  moratorium and
similar  laws  affecting  the  enforcement  of rights of creditors or by general
principles of equity).

      (b) Neither the execution and delivery of this Agreement, the consummation
of the transactions  contemplated  herein, nor compliance by F&M with any of the
provisions hereof will: (i) conflict with or result in a breach of any provision
of the Articles of  Incorporation  or Bylaws of F&M or any F&M Subsidiary;  (ii)
constitute  or result in the breach of any term,  condition or provision  of, or
constitute  a  default  under,  or  give  rise  to  any  right  of  termination,
cancellation or  acceleration  with respect to, or result in the creation of any
lien,  charge  or  encumbrance  upon,  any  property  or asset of F&M or any F&M
Subsidiary pursuant to any note, bond, mortgage,  indenture,  license, agreement
or other  instrument or obligation that would have a Material  Adverse Effect on
F&M, or (iii) violate any order,  writ,  injunction,  decree,  statute,  rule or
regulation applicable to F&M or any F&M Subsidiary.

      3.4   Capital Structure


<PAGE>

     The authorized capital stock of F&M consists of: (i) 5,000,000 shares of
preferred stock, no par value per share, of which none are issued and
outstanding; and (ii) 30,000,000 shares of common stock, par value $2.00 per
share, of which 21,893,800 shares were issued and outstanding on September 30,
1998. All outstanding shares of F&M Common Stock have been duly issued and are
validly outstanding, fully paid and nonassessable and have not been issued in
violation of the preemptive rights of any person. The shares of F&M Common Stock
to be issued in exchange for shares of Security Common Stock upon consummation
of the Merger will have been duly authorized and, when issued in accordance with
the terms of this Agreement, will be validly issued, fully paid and
nonassessable, will not be issued in violation of the preemptive rights of any
person, and will be duly registered under the applicable federal and state
securities laws.

      3.5   Financial Statements; Books and Records; Minute Books

      The F&M Financial  Statements  (as defined  below) fairly  present or will
fairly present,  as the case may be, the consolidated  financial position of F&M
as of the dates indicated and the consolidated results of operations, changes in
shareholders'  equity and  statements of cash flows for the periods or as of the
dates set forth therein (subject,  in the case of unaudited interim  statements,
to normal recurring audit adjustments that are not material in amount or effect)
in  conformity  with  generally  accepted  accounting  principles  applicable to
financial  institutions  applied on a consistent basis. The books and records of
the F&M Companies  fairly reflect in all material  respects the  transactions to
which each company is a party or by which its  properties  are subject or bound.
Such  books  and  records  have been  properly  kept and  maintained  and are in
compliance in all material  respects with all  applicable  legal and  accounting
requirements.  The minute books of the F&M Companies contain accurate records of
all corporate  actions of their respective  shareholders and Boards of Directors
(including  committees of its Board of Directors).  The F&M Financial Statements
shall mean (i) the  consolidated  balance  sheets of F&M as of December 31, 1997
and 1996 and the related consolidated statements of income, shareholders' equity
and cash flows for each of the three years ended  December  31,  1997,  1996 and
1995 (including  related notes and schedules,  if any) and (ii) the consolidated
balance   sheets  of  F&M  and  related   consolidated   statements  of  income,
shareholders'  equity and cash flows (including related notes and schedules,  if
any) with respect to quarterly periods ended subsequent to December 31, 1997.

      3.6   Absence of Material Changes or Events

      Since  September 30, 1998,  there has not been any change in the financial
condition  or  results  of  operations  of F&M or the  F&M  Subsidiaries  which,
individually  or in the  aggregate,  has had or is  reasonably  likely to have a
Material Adverse Effect.

      3.7   Absence of Undisclosed Liabilities

      Neither  F&M nor any F&M  Subsidiary  has  any  liability  (contingent  or
otherwise)  that is  material  to F&M on a  consolidated  basis  or  that,  when
combined  with  all  similar  liabilities,   would  be  material  to  F&M  on  a
consolidated  basis,  except as disclosed in the F&M  Financial  Statements  and
except for liabilities  incurred in the ordinary  course of business  consistent
with past practice since the date of the most recent F&M Financial Statements.

      3.8   Legal Proceedings; Compliance with Laws


<PAGE>

      There are no actions,  suits or  proceedings  instituted or pending or, to
the Knowledge of F&M, threatened against any of the F&M Companies or against any
property,  asset,  interest or right of any of the F&M  Companies or against any
officer,  director  or  employee  of any of the F&M  Companies  that  would,  if
determined  adversely  to F&M or any F&M  Subsidiary,  have a  Material  Adverse
Effect  on F&M on a  consolidated  basis.  To the  Knowledge  of  F&M,  the  F&M
Companies  have  complied in all material  respects  with all laws,  ordinances,
requirements,  regulations or orders  applicable to their respective  businesses
(including environmental laws, ordinances, requirements, regulations or orders).

      3.9   Tax Matters

      The F&M Companies have filed all Tax Returns required to be filed, and all
such Tax Returns were correct and complete in all material  respects.  All Taxes
owed by the F&M  Companies  have been paid,  are reflected as a liability in the
F&M  Financial  Statements,  or are being  contested in good faith and have been
Previously Disclosed in its Disclosure Schedule. Except as Previously Disclosed,
no tax return or report of the F&M Companies is under  examination by any taxing
authority or the subject of any  administrative or judicial  proceeding,  and no
unpaid tax deficiency has been asserted  against the F&M Companies by any taxing
authority.

      3.10  Employee Benefit Plans

      (a) All F&M employee  benefit plans are in compliance  with the applicable
terms  of  ERISA  and  the  Code  and  any  other  applicable  laws,  rules  and
regulations,  the  breach or  violation  of which  could  result  in a  material
liability to F&M on a consolidated basis.

      (b) No F&M  employee  benefit  plan  subject  to ERISA  that is a  defined
benefit  pension  plan has any  "unfunded  current  liability,"  as that term is
defined in Section  302(d)(8)(A) of ERISA,  and the present fair market value of
the assets of any such plan exceeds the plan's  `benefit  liabilities,'  as that
term is defined in Section 4001(a)(16) of ERISA, when determined under actuarial
factors  that would  apply if the plan was  terminated  in  accordance  with all
applicable legal requirements.

      3.11  Insurance

      Each  of the  F&M  Companies  currently  maintains  insurance  in  amounts
reasonably necessary for its operations and, to the Knowledge of F&M, similar in
scope and coverage to that  maintained  by other  entities  similarly  situated.
Since  January  1, 1998 and  except  as  Previously  Disclosed,  none of the F&M
Companies  has received any notice of a premium  increase or  cancellation  or a
failure to renew with respect to any  insurance  policy or bond and,  within the
last  three  fiscal  years,  none of the F&M  Companies  has  been  refused  any
insurance  coverage sought or applied for, and F&M has no reason to believe that
existing  insurance coverage cannot be renewed as and when the same shall expire
upon terms and conditions as favorable as those presently in effect,  other than
possible  increases in premiums or unavailability of coverage that do not result
from any extraordinary loss experience on the part of the F&M Companies.

      3.12  Allowance for Loan Losses

      The allowance for loan losses  reflected on the balance sheets included in
the F&M Financial  Statements,  as of their respective dates, is adequate in all
material  respects  under the  requirements  of  generally  accepted  accounting
principles  and  regulatory  accounting  principles  to provide  for  reasonably
anticipated losses on outstanding loans.


<PAGE>



      3.13  Environmental Matters

      To the Knowledge of F&M, the F&M Companies are in  substantial  compliance
with  all  Environmental  Laws.  None  of the F&M  Companies  has  received  any
communication  alleging that F&M or any F&M Subsidiary is not in such compliance
and, to the  Knowledge  of F&M,  there are no present  circumstances  that would
prevent or interfere with the continuation of such compliance.


      3.14  Securities Reports

      F&M has filed  with the SEC all  required  forms,  reports  and  documents
required  under the Exchange Act.  F&M's Annual Report on Form 10-K for the year
ended December 31, 1997, and all other reports,  definitive  proxy statements or
documents  filed or to be filed by it  subsequent  to  December  31,  1997 under
Section 13(a),  13(c), 14 or 15(d) of the Exchange Act, in the form filed, or to
be filed,  with the Securities and Exchange  Commission (the "SEC") (i) complied
or  will  comply  in all  material  respects  as to  form  with  the  applicable
requirements  under the  Exchange  Act and (ii) did not and will not contain any
untrue statement of a material fact or omit to state a material fact required to
be stated therein or necessary to make the statements made therein,  in light of
the circumstances under which they were made, not misleading.

      3.15  Statements True and Correct

     When the Registration Statement to be filed by F&M with the SEC shall
become effective, and at all times subsequent thereto up to and including the
Security shareholders' meeting called to consider and vote on the approval of
the Merger, such Registration Statement and all amendments or supplements
thereto, with respect to all information set forth therein furnished by F&M
relating to F&M (i) shall comply in all material respects with the applicable
provisions of the federal and state securities laws, and (ii) shall not contain
any untrue statement of a material fact or omit to state a material fact
required to be stated therein or necessary to make the statements contained
therein, in light of the circumstances under which they were made, not
misleading.

                                    ARTICLE 4
                            COVENANTS AND AGREEMENTS

      4.1   Reasonable Best Efforts

     Subject to the terms and conditions of this Agreement, F&M and Security
agree to use their reasonable best efforts in good faith to take, or cause to be
taken, all actions, and to do, or cause to be done, all things necessary or
desirable, or advisable under applicable laws, so as to permit consummation of
the Merger as promptly as practicable and shall cooperate fully with the other
party hereto to that end.

      4.2   Access to Information; Notice of Certain Matters; Confidentiality

     (a) F&M and Security each will keep the other advised of all material
developments relevant to its business and to consummation of the transactions
contemplated herein. F&M and Security each may make or cause to be made such
further investigation of the operational, financial and legal condition of the
other as such party reasonably deems necessary or advisable in connection with
the Merger, provided, however, that such investigation shall not interfere
unnecessarily with normal operations. F&M and Security agree to furnish the
other and the other's advisors with such financial data and other information
with respect to its business and properties as such other party shall from time
to time reasonably request. No investigation pursuant to this Section 4.2 shall
affect or be deemed to modify any representation or warranty made by, or the
conditions to the obligations to consummate the Merger of, such party hereto.


<PAGE>

     (b) F&M and Security shall give prompt notice to the other of any fact,
event or circumstance known to it that (i) is reasonably likely, individually or
taken together with all other facts, events and circumstances known to it, to
result in any Material Adverse Effect with respect to it or (ii) would cause or
constitute a material breach of any of its representations, warranties,
covenants or agreements contained herein.

      (c) Each party  shall,  and shall cause each of its  directors,  officers,
attorneys  and  advisors,  to maintain the  confidentiality  of all  information
obtained in such investigation  which is not otherwise publicly disclosed by the
other party,  such  undertaking with respect to  confidentiality  to survive any
termination  of  this  Agreement.  In the  event  of  the  termination  of  this
Agreement, each party shall return to the furnishing party or, at the request of
the furnishing  party,  destroy and certify the destruction of all  confidential
information   previously   furnished  in   connection   with  the   transactions
contemplated by this Agreement.

      4.3   Registration Statement; Shareholder Approval

     (a) F&M and Security agree to cooperate in the preparation of the
Registration Statement to be filed by F&M with the SEC in connection with the
issuance of F&M Common Stock in the Merger (including the proxy statement and
prospectus and other proxy solicitation materials of F&M and Security
constituting a part thereof (the "Proxy Statement") and all related documents).
F&M and Security agree to use all reasonable efforts to cause the Registration
Statement to be declared effective under the Securities Act of 1933, as amended
(the "Securities Act"), as promptly as reasonably practicable after filing
thereof. F&M shall also take any action required to be taken under state
securities or "Blue Sky" laws in connection with the issuance of F&M Common
Stock pursuant to the Merger.

     (b) Security shall submit this Agreement and the Plan of Merger to its
shareholders at a special meeting to be held as promptly as practicable after
the Registration Statement is declared effective for the purpose of approving
the Merger. The Board of Directors of Security shall recommend such approval,
and Security shall take all reasonable lawful action to solicit such approval by
its shareholders; provided, however, that if the Board of Directors of Security
shall have reasonably determined in good faith (after consultation with its
counsel) that such recommendation is reasonably likely to constitute a breach of
its fiduciary duties to the shareholders of Security, then the Board of
Directors of Security shall not be obligated to recommend the approval of this
Agreement and Plan of Merger.

      4.4   Operation of the Business of Security

     Security agrees that, except as expressly permitted by this Agreement or
otherwise consented to or approved in writing by F&M, during the period from the
date hereof to the Effective Date:

     (a) Security will conduct its operations only in the ordinary and usual
course of business consistent with past practice (subject, in any event, to the
provisions of paragraph (c) below) and will use its best efforts to keep
available the services of its officers and employees and maintain satisfactory
relationships with customers, suppliers, employees and others having business
relationships with them.


<PAGE>

     (b) Security shall not take any action, engage in any transactions or enter
into any agreement which would adversely affect or delay in any material respect
the ability of F&M or Security to obtain any necessary approvals, consents or
waivers of any governmental authority or third party required for the
transactions contemplated hereby or to perform its covenants and agreements on a
timely basis under this Agreement.

      (c) Security will not:

            (1)  Other  than  pursuant  to  stock  options  and  stock  warrants
      Previously Disclosed in its Disclosure Schedule and currently  outstanding
      as of the date  hereof:  (i)  issue,  sell or  otherwise  permit to become
      outstanding,  or  authorize  the  creation  of, any  additional  shares of
      capital stock,  any stock  appreciation  rights or any Rights;  (ii) enter
      into any  agreement  with  respect to the  foregoing;  or (iii) permit any
      additional  shares of  capital  stock to become  subject  to new grants of
      employee stock options,  stock appreciation rights, or similar stock-based
      employee rights;

            (2) Enter into or amend any written employment agreement,  severance
      or similar agreements or arrangements with any of its directors,  officers
      or  employees,  or grant  any  salary or wage  increase  or  increase  any
      employee  benefit  (including  incentive  or bonus  payments),  except for
      normal  individual  increases in compensation to employees in the ordinary
      course of business consistent with past practice;

            (3) Enter into or amend  (except as may be  required  by  applicable
      law) any pension,  retirement,  stock  option,  stock  purchase,  savings,
      profit sharing, deferred compensation,  consulting, bonus, group insurance
      or  other  employee  benefit,   incentive,   welfare  contract,   plan  or
      arrangement,  or any trust agreement  related  thereto,  in respect of any
      directors, officers or employees,  including without limitation taking any
      action that  accelerates  the vesting or exercise of any benefits  payable
      thereunder;

            (4)  Incur  any  obligation  or  liability   (whether   absolute  or
      contingent,  excluding suits instituted  against it), make any pledge,  or
      encumber any of its assets,  nor dispose of any of its assets in any other
      manner,  except in the  ordinary  course of its  business and for adequate
      value, or as otherwise specifically permitted in this Agreement;

            (5) Change its lending,  investment,  asset/liability  management or
      other material banking policies in any material respect,  except as may be
      required by applicable law;

            (6) Alter, amend or repeal its bylaws or articles of incorporation;

            (7) Take any other  action  which would make any  representation  or
      warranty in Article 2 hereof untrue; or

            (8) Agree or commit to do anything prohibited by this Section 4.4.

      4.5   Operation of the Business of F&M

     F&M agrees that, except as expressly permitted by this Agreement or
otherwise consented to or approved in writing by Security, during the period
from the date hereof to the Effective Date:


<PAGE>

      (a) F&M will and will cause each of the F&M  Subsidiaries to conduct their
respective  operations  only  in the  ordinary  and  usual  course  of  business
consistent  with past practice and will use its best efforts to preserve  intact
their respective  business  organizations,  keep available the services of their
officers and employees and maintain  satisfactory  relationships with customers,
suppliers, employees and others having business relationships with them.

     (b) F&M shall not, and shall not permit any of the F&M Subsidiaries to,
take any action, engage in any transactions or enter into any agreement which
would adversely affect or delay in any material respect the ability of F&M or
Security to obtain any necessary approvals, consents or waivers of any
governmental authority or third party required for the transactions contemplated
hereby or to perform its covenants and agreements on a timely basis under this
Agreement.

      4.6   No Dividends

     Security will not declare or pay any cash dividend or make any other
distribution in respect of Security Common Stock prior to the Effective Date.

      4.7   No Solicitation of Other Offers

     Without the prior consent of F&M, Security shall not, and shall cause its
officers, directors, agents, advisors and affiliates not to, solicit or
encourage inquiries or proposals with respect to, furnish any information
relating to, or participate in any negotiations or discussions concerning, an
Acquisition Transaction (as hereinafter defined); provided, however, that
nothing contained in this Section 4.7 shall prohibit the Board of Directors of
Security from furnishing information to, or entering into discussions or
negotiations with, any person or entity that makes an unsolicited, written bona
fide proposal regarding an Acquisition Transaction if, and only to the extent
that (A) the Board of Directors of Security concludes in good faith, after
consultation with and based upon the advice of outside counsel, that it is
required to furnish such information or enter into such discussions or
negotiations in order to comply with its fiduciary duties to shareholders under
applicable law, (B) prior to taking such action, Security receives from such
person or entity an executed confidentiality agreement, and (C) the Board of
Directors of Security concludes in good faith that the proposal regarding the
Acquisition Transaction contains an offer of consideration that is superior to
the consideration set forth herein. Security shall immediately notify F&M orally
and in writing of its receipt of any such proposal or inquiry, of the material
terms and conditions thereof, and of the identity of the person making such
proposal or inquiry. For purposes of this Agreement, "Acquisition Transaction"
means any merger, consolidation, share exchange, joint venture, business
combination or similar transaction involving Security or any purchase of all or
any material portion of the assets of Security.

      4.8   Regulatory Filings

     F&M and Security shall use their reasonable best efforts to prepare and
file as soon as practicable after the date hereof all required applications for
regulatory approval of the Merger. F&M shall use its best efforts to obtain
prompt approval of each required application.

      4.9   Public Announcements


<PAGE>

      Each party will consult with the other before issuing any press release or
otherwise making any public  statements with respect to the Merger and shall not
issue any such press  release or make any such  public  statement  prior to such
consultations, except as may be required by law.

      4.10  Accounting Treatment

     F&M and Security shall each use their best efforts to ensure that the
Merger qualifies for pooling-of-interests accounting treatment under generally
accepted accounting principles and, as of the date hereof, F&M is aware of no
reason why the Merger may not be accounted for as a pooling-of-interests.

      4.11  Affiliate Agreements

     Security has identified to F&M all persons who are, as of the date hereof,
directors or executive officers of Security (the "Affiliates"). Security has
delivered a written letter agreement in the form of Exhibit B hereto from each
Affiliate.

      4.12  Benefit Plans

     Upon consummation of the Merger, as soon as administratively practicable,
employees of Security shall be entitled to participate in the F&M pension,
health and welfare benefit and similar plans on the same terms and conditions as
employees of the F&M Companies, giving effect to years of service for purposes
of eligibility to participate, eligibility for benefits, and vesting with
Security as if such service were with F&M. Prior to the consummation of the
Merger, the Security Bank Corporation 401(k) Profit Sharing Plan will be
terminated. As of the Effective Date, F&M will assume and honor the terms of all
deferred compensation plans of Security.

      4.13  NYSE Listing

      F&M shall use its  reasonable  best efforts to list,  as of the  Effective
Date,  on the New York Stock  Exchange  upon  official  notice of issuance,  the
shares of F&M Common Stock to be issued in the Merger.

      4.14  Indemnification

     Following the Effective Date and for a period of six years thereafter, F&M
shall indemnify, defend and hold harmless any person who has rights to
indemnification from Security, to the same extent and on the same conditions as
such person is entitled to indemnification pursuant to applicable law and
Security's Articles of Incorporation or Bylaws, as in effect on the date of this
Agreement, to the extent legally permitted to do so with respect to matters
occurring on or prior to the Effective Date; provided, however, that F&M's
obligation to provide such indemnification shall not apply to material
litigation, proceeding or controversy required to be Previously Disclosed in the
Security Disclosure Schedule that is not included in such Disclosure Schedule.
Without limiting the foregoing, in any case in which corporate approval may be
required to effectuate any indemnification, F&M shall direct, at the election of
the party to be indemnified, that the determination of permissibility of
indemnification shall be made by independent counsel mutually agreed upon
between F&M and the indemnified party. F&M shall use its reasonable best efforts
to maintain Security's existing directors' and officers' liability policy, or
some other policy, including F&M's existing policy, providing at least
comparable coverage, covering persons who are currently covered by such
insurance of Security for a period of three years after the Effective Date on
terms no less favorable than those in effect on the date hereof.


<PAGE>



                                    ARTICLE 5
                            CONDITIONS TO THE MERGER

      5.1   General Conditions

     The respective obligations of each of F&M and Security to effect the Merger
shall be subject to the fulfillment or waiver at or prior to the Effective Date
of the following conditions:

      (a)  Corporate  Action.  All corporate  action  necessary to authorize the
execution,  delivery and  performance of this Agreement and  consummation of the
transactions  contemplated  hereby  shall  have  been  duly and  validly  taken,
including without limitation the approval of the shareholders of Security.

      (b) Registration Statement; NYSE Listing. The Registration Statement shall
have been  declared  effective  under the  Securities  Act,  and F&M shall  have
received   all  state   securities   laws  or  "blue  sky"   permits  and  other
authorizations  or there  shall be  exemptions  from  registration  requirements
necessary to issue F&M Common Stock in connection  with the Merger,  and neither
the Registration Statement nor any such permit or authorization shall be subject
to a stop order or any threatened stop order of the SEC or any state  securities
commissioner. The shares of F&M Common Stock to be issued in connection with the
Merger shall have been approved for listing on the New York Stock Exchange.

     (c) Regulatory Approvals. F&M and Security shall have received all
regulatory approvals required in connection with the transactions contemplated
by this Agreement, all notice periods and waiting periods required after the
granting of any such approvals shall have passed, and all such approvals shall
be in effect; provided, however, that no such approvals shall have imposed any
condition or requirement which, in the reasonable opinion of the Boards of
Directors of F&M or Security, would so materially adversely impact the economic
or business benefits of the transactions contemplated by this Agreement as to
render consummation of the Merger inadvisable or unduly burdensome.

     (d) Tax Opinion. F&M and Security shall have received the opinion of
LeClair Ryan, A Professional Corporation, counsel to F&M, in form and substance
satisfactory to F&M and Security and dated as of the Effective Date to the
effect that the Merger will constitute a reorganization within the meaning of
Section 368(a)(1)(A) of the Code and that no gain or loss will be recognized by
the shareholders of Security to the extent they receive F&M Common Stock solely
in exchange for their Security Common Stock in the Merger. In rendering its
opinions, such counsel may rely upon representations contained in certificates
of officers of F&M, Security and others.

     (e) Opinions of Counsel. Security shall have delivered to F&M and F&M shall
have delivered to Security opinions of counsel, dated as of the Effective Date,
as to such matters as they may each reasonably request with respect to the
transactions contemplated by this Agreement and in a form reasonably acceptable
to each of them.

     (f) Legal Proceedings. Neither F&M nor Security shall be subject to any
order, decree or injunction of a court or agency of competent jurisdiction which
enjoins or prohibits the consummation of the Merger.

      5.2   Conditions to Obligations of F&M


<PAGE>

      The  obligations  of F&M to effect  the  Merger  shall be  subject  to the
fulfillment  or  waiver  at or  prior  to the  Effective  Date of the  following
additional conditions:

     (a) Representations and Warranties. The representations and warranties of
Security set forth in Article 2 shall be true and correct as of the date of this
Agreement and as of the Effective Date as though made on the Effective Date,
except (i) for any such representations and warranties made as of a specified
date, which shall be true and correct as of such date, (ii) as expressly
contemplated by this Agreement, or (iii) for representations and warranties the
inaccuracies of which relate to matters that, individually or in the aggregate,
do not materially adversely affect the Merger and the other transactions
contemplated by this Agreement.

     (b) Performance of Obligations. Security shall have performed in all
material respects all obligations required to be performed by it under this
Agreement prior to the Effective Date.

     (c) Officers' Certificate. Security shall have delivered to F&M a
certificate, dated the Effective Date and signed by its Chairman or President,
to the effect that the conditions set forth in Sections 5.1(a), 5.2(a) and
5.2(b) have been satisfied.

      (d) Accountants' Letter. F&M shall have received a letter, dated as of the
Effective  Date,  from Yount,  Hyde & Barbour,  P.C.,  satisfactory  in form and
substance  to  F&M,  that  the  Merger  will  qualify  for  pooling-of-interests
accounting  treatment;  provided,  however,  that  such  letter  shall  not be a
condition to the  consummation of the Merger if F&M takes any action which would
prevent  the  Merger  from   qualifying  for   pooling-of-interests   accounting
treatment.

      5.3   Conditions to Obligations of Security

     The obligations of Security to effect the Merger shall be subject to the
fulfillment or waiver at or prior to the Effective Date of the following
additional conditions:

      (a) Representations and Warranties.  The representations and warranties of
F&M set  forth in  Article  3 shall be true and  correct  as of the date of this
Agreement  and as of the Effective  Date as though made on the  Effective  Date,
except (i) for any such  representations  and warranties  made as of a specified
date,  which  shall be true  and  correct  as of such  date,  (ii) as  expressly
contemplated by this Agreement,  or (iii) for representations and warranties the
inaccuracies of which relate to matters that,  individually or in the aggregate,
do not  materially  adversely  affect  the  Merger  and the  other  transactions
contemplated by this Agreement.

      (b) Performance of  Obligations.  F&M shall have performed in all material
respects all  obligations  required to be  performed by it under this  Agreement
prior to the Effective Date.

     (c) Officers' Certificate. F&M shall have delivered to Security a
certificate, dated the Effective Date and signed by its Chairman or President,
to the effect that the conditions set forth in Sections 5.1(a), 5.1(b), 5.1(c),
5.3(a) and 5.3(b) have been satisfied.

     (d) Investment Banking Letter. Security shall have received an updated
fairness opinion from Scott & Stringfellow, Inc., financial advisor to Security,
addressed to Security and dated on or about the date the Proxy Statement is
mailed to shareholders of Security, to the effect that the terms of the Merger
are fair to the shareholders of Security from a financial point of view.


<PAGE>



                                    ARTICLE 6
                                   TERMINATION

      6.1   Termination

      This Agreement and the Plan of Merger may be terminated at any time before
the Effective Date, whether before or after approval thereof by the shareholders
of Security at the Security Meeting, as provided below:

      (a) Mutual Consent.  By the mutual consent in writing of F&M and Security.

      (b) Closing Delay.  At the election of either party,  evidenced by written
notice, if the Effective Date shall not have occurred on or before September 30,
1999, or such later date as shall have been agreed to in writing by the parties;
provided,  however,  that the right to terminate under this Section 6.1(b) shall
not be  available  to either  party  whose  failure  to  perform  an  obligation
hereunder  has been the  cause  of,  or has  resulted  in,  the  failure  of the
Effective Date to occur on or before such date.

     (c) Conditions to F&M Performance Not Met. By F&M upon delivery of written
notice of termination to Security if any event occurs which renders impossible
the satisfaction in any material respect of one or more of the conditions to the
obligations of F&M to effect the Merger set forth in Sections 5.1 and 5.2, and
such noncompliance is not waived by F&M.

     (d) Conditions to Security Performance Not Met. By Security upon delivery
of written notice of termination to F&M if any event occurs which renders
impossible the satisfaction in any material respect of one or more of the
conditions to the obligations of Security to effect the Merger set forth in
Sections 5.1 and 5.3, and such noncompliance is not waived by Security.

      6.2   Effect of Termination

      In the event this Agreement is terminated  pursuant to Section 6.1 hereof,
both this Agreement and the Plan of Merger shall become void and have no effect,
except  that  (i) the  provisions  hereof  relating  to  confidentiality,  press
releases  and expenses  set forth in Sections  4.2,  4.9 and 6.4,  respectively,
shall survive any such termination and (ii) a termination  pursuant to 6.1(c) or
6.1(d)  hereof  shall not  relieve the  breaching  party from  liability  for an
uncured  intentional  breach of any provision of this  Agreement  giving rise to
such termination.

      6.3   Survival of Representations, Warranties and Covenants

      All  representations,  warranties  and covenants in this Agreement and the
Plan of Merger shall not survive the Effective  Date and shall be terminated and
extinguished  at the  Effective  Date.  From and after the Effective  Date,  the
parties  hereto shall have no liability to the other on account of any breach of
any of those representations,  warranties and covenants; provided, however, that
the  foregoing  clause shall not (i) apply to agreements of the parties which by
their terms are  intended to be performed  after the  Effective  Date,  and (ii)
shall not relieve any person for liability for fraud,  deception or  intentional
misrepresentation.


<PAGE>



      6.4   Fees and Expenses

      (a) Except as provided  below,  each of the parties shall bear and pay all
costs  and  expenses   incurred  by  it  in  connection  with  the  transactions
contemplated   herein,   including  fees  and  expenses  of  its  own  financial
consultants,  accountants  and counsel,  except that printing  expenses shall be
shared equally between F&M and Security.

     (b) Notwithstanding any provision in this Agreement to the contrary, if for
any reason the Merger is not approved by Security's shareholders at the Security
Meeting or any adjournment thereof, then Security shall reimburse F&M for
one-half of its reasonable out-of-pocket and other expenses incurred by F&M in
connection with entering into this Agreement and the transactions contemplated
hereunder, provided that the maximum amount that Security shall be responsible
to F&M under this Section 6.4(b) shall be limited to $50,000.

     (c) If this Agreement is terminated by F&M or Security because of a willful
and material breach by the other of any representation, warranty, covenant,
undertaking or restriction set forth herein, and provided that the terminating
party shall not have been in breach (in any material respect) of any
representation and warranty, covenant, undertaking or restriction contained
herein, then the breaching party shall reimburse the other party for all
reasonable out-of-pocket expenses incurred by it in connection with the
transactions contemplated by this Agreement and the enforcement of its rights
hereunder.

      (d) Final  settlement with respect to the  reimbursement  of such fees and
expenses by the parties shall be made within  thirty days after the  termination
of this Agreement.

                                    ARTICLE 7
                               GENERAL PROVISIONS

      7.1   Entire Agreement

     This Agreement contains the entire agreement among F&M and Security with
respect to the Merger and the related transactions and supersedes all prior
arrangements or understandings with respect thereto.

      7.2   Binding Effect; No Third Party Rights

     This Agreement shall bind F&M and Security and their respective successors
and assigns. Other than Section 4.14, nothing in this Agreement is intended to
confer upon any person, other than the parties hereto or their respective
successors, any rights or remedies under or by reason of this Agreement.

      7.3   Waiver and Amendment

     Any term or provision of this Agreement may be waived in writing at any
time by the party that is, or whose shareholders are, entitled to the benefits
thereof, and this Agreement may be amended or supplemented by a written
instrument duly executed by the parties hereto at any time, whether before or
after the later of the date of the Security Meeting, except statutory
requirements and requisite approvals of shareholders and regulatory authorities.


<PAGE>



      7.4   Governing Law

      This Agreement shall be governed by, and construed in accordance with, the
laws of the  Commonwealth  of  Virginia  without  regard to the  conflict of law
principles thereof.

      7.5   Notices

      All  notices  or other  communications  that  are  required  or  permitted
hereunder shall be in writing and sufficient if delivered  personally or sent by
registered or certified mail, postage prepaid, addressed as follows:

            If to F&M:
                  Alfred B. Whitt
                  F&M National Corporation
                  38 Rouss Avenue
                  P. O. Box 2800
                  Winchester, Virginia 22604
                  Tele: (540) 665-4282

            Copy to:
                  George P. Whitley, Esquire
                  LeClair Ryan, A Professional Corporation
                  707 East Main Street; 11th Floor
                  Richmond, Virginia 23219
                  Tele: (804) 783-2003

            If to Security:
                  Danny R. May
                  Security Bank Corporation
                  8780 Centreville Road
                  Manassas, Virginia 20110
                  Tele: (703) 361-1986

            Copy to:
                  Jody M. Wagner, Esq.
                  Kaufman & Canoles
                  One Commercial Place
                  Post Office Box 3037
                  Norfolk, Virginia  23514
                  Tele: (757) 624-3000


<PAGE>



      7.6   Counterparts

      This  Agreement  may be  executed in any number of  counterparts,  each of
which shall be an original,  but such counterparts together shall constitute one
and the same agreement.

      7.7   Severability

      In the event that any provision of this Agreement shall be held invalid or
unenforceable  by any court of competent  jurisdiction,  such holding  shall not
invalidate or render unenforceable any other provisions hereof. Any provision of
this Agreement held invalid or unenforceable only in part or degree shall remain
in full  force and  effect to the  extent  not held  invalid  or  unenforceable.
Further, the parties agree that a court of competent jurisdiction may reform any
provision of this Agreement held invalid or  unenforceable  so as to reflect the
intended agreement of the parties hereto.


<PAGE>




      IN WITNESS  WHEREOF,  the parties  hereto have caused this Agreement to be
executed in counterparts  by their duly authorized  officers and their corporate
seals to be affixed hereto, all as of the date first written above.


                                    F&M NATIONAL CORPORATION
                                    Winchester, Virginia


                                    By:   /s/ Alfred B. Whitt
                                          -------------------
                                          Alfred B. Whitt
                                          Vice Chairman, President and
                                          Chief Financial Officer


                                    F&M BANK-NORTHERN VIRGINIA
                                    Fairfax, Virginia


                                    By:   /s/ T. Earl Rogers
                                          ------------------
                                          T. Earl Rogers
                                          President


                                    SECURITY BANK CORPORATION
                                    Manassas, Virginia


                                    By:   /s/ John O. Gregory
                                          -------------------
                                          John O. Gregory
                                          Chairman of the Board




<PAGE>



                                                                       EXHIBIT A
                                                            To the Agreement and
                                                          Plan of Reorganization


                                 PLAN OF MERGER
                                     BETWEEN
                           F&M BANK-NORTHERN VIRGINIA
                                       AND
                            SECURITY BANK CORPORATION

       Pursuant  to this  Plan of  Merger  ("Plan  of  Merger"),  Security  Bank
Corporation,  a Virginia banking corporation ("Security"),  shall merge with and
into F&M Bank-Northern  Virginia, a wholly-owned  Virginia banking subsidiary of
F&M National Corporation.

                                    ARTICLE I
                               TERMS OF THE MERGER

      1.1   The Merger

     Subject to the terms and conditions of the Agreement and Plan of
Reorganization, dated as of November 25, 1998, by and among F&M National
Corporation, a Virginia corporation ("F&M"), F&M Bank-Northern Virginia, and
Security (the "Agreement"), at the Effective Date Security shall be merged with
and into F&M Bank-Northern Virginia (the "Merger") in accordance with the
provisions of Virginia law and with the effect specified in Section 13.1-721 of
the Virginia Stock Corporation Act. F&M Bank-Northern Virginia shall be the
surviving corporation of the Merger, and its name shall remain F&M Bank-Northern
Virginia (F&M Bank-Northern Virginia as existing on and after the Effective Date
is sometimes referred to as the "Continuing Bank"). The Merger shall become
effective on such date and time as may be determined in accordance with Section
1.5 of the Agreement (the "Effective Date").

      1.2   Articles of Incorporation and Bylaws

      The Articles of Incorporation and Bylaws of F&M Bank-Northern  Virginia in
effect  immediately  prior to the  consummation  of the Merger  shall  remain in
effect following the Effective Date until otherwise amended or repealed.

                                   ARTICLE II
                           MANNER OF CONVERTING SHARES

      2.1   Conversion of Shares

      Upon and by reason of the  Merger  becoming  effective  and  except as set
forth in Section 2.3 below,  no cash shall be allocated to the  shareholders  of
Security and stock shall be issued and allocated as follows:

     (a) Each share of common stock, par value $5.00 per share, of Security
("Security Common Stock") issued and outstanding immediately prior to the
Effective Date shall, by operation of law, be automatically exchanged for the
number of shares of common stock, par value $2.00 per share, of F&M ("F&M Common
Stock"), whose aggregate market value equals $17.25. The market value of F&M
Common Stock will be its average closing price as reported on the New York Stock
Exchange (the "NYSE") for each of the ten full trading days ending on the fifth
day prior to the Effective Date (the "Average Closing Price") (the ten full
trading day period during which the Exchange Ratio will be determined is
referred to as the "Exchange Ratio Determination Period"). The ratio of shares
of F&M Common Stock that will be exchanged for each outstanding share of
Security Common Stock shall be referred to herein as the "Exchange Ratio," which
shall be rounded to the nearest third decimal point. Notwithstanding the
foregoing, in the event: (A) F&M shall have entered into an agreement with any
person to (i) acquire, merge or consolidate, or enter into any similar
transaction, with F&M, (ii) purchase, lease or otherwise acquire all or
substantially all of the assets of F&M or (iii) purchase or otherwise acquire
securities representing 10% or more of the voting power of F&M; or (B) any
person shall have made a bona fide proposal to F&M by public announcement or
written communication that is or becomes the subject of public disclosure to
acquire F&M by merger, share exchange, consolidation, purchase of all or
substantially all of its assets or any similar transaction, the Average Closing
Price will be based on the average closing price of F&M Common Stock for each of
the ten trading days immediately preceding the public announcement of a
transaction or event described in either (A) or (B).


<PAGE>

     (b) Each holder of a certificate representing shares of Security Common
Stock upon the surrender of his Security stock certificates to the Exchange
Agent (as defined in Section 2.2), duly endorsed for transfer in accordance with
Section 2.2 below, will be entitled to receive in exchange therefor a
certificate or certificates representing the number of shares of F&M Common
Stock that his shares shall be converted into pursuant to the Exchange Ratio.
Each such holder of Security Common Stock shall have the right to receive the
consideration described in this Section 2.1 and Section 2.3 upon the surrender
of such certificate in accordance with Section 2.2. In the event F&M changes (or
establishes a record date for changing) the number of shares of F&M Common Stock
issued and outstanding prior to the Effective Date as a result of any stock
split, stock dividend, recapitalization or similar transaction with respect to
the outstanding shares of F&M Common Stock and the record date therefor shall be
prior to the Effective Date, appropriate and proportional adjustments will be
made to the Exchange Ratio.

      (c) Each share of common stock of F&M  Bank-Northern  Virginia  issued and
outstanding  immediately prior to the Effective Date shall continue unchanged as
an outstanding share of common stock of the Continuing Bank.

     (d) From and after the Effective Date, all employee and director stock
options to purchase shares of Security Common Stock (each, a "Security Stock
Option") that are then outstanding and unexercised, shall be converted into and
become options to purchase shares of F&M Common Stock, and F&M shall assume each
such Security Stock Option in accordance with the terms of the plan and
agreement by which it is evidenced; provided, however, that from and after the
Effective Date (i) each such Security Stock Option assumed by F&M may be
exercised solely to purchase shares of F&M Common Stock, (ii) the number of
shares of F&M Common Stock purchasable upon exercise of such Security Stock
Option shall be equal to the number of shares of Security Common Stock that were
purchasable under such Security Stock Option immediately prior to the Effective
Date multiplied by the Exchange Ratio and rounding down to the nearest whole
share, with cash being paid for any fractional share interest that otherwise
would be purchasable, and (iii) the per share exercise price under each such
Security Stock Option shall be adjusted by dividing the per share exercise price
of each such Security Stock Option by the Exchange Ratio, and rounding down to
the nearest cent. The terms of each Security Stock Option shall, in accordance
with its terms, be subject to further adjustment as appropriate to reflect any
stock split, stock dividend, recapitalization or other similar transaction with
respect to F&M Common Stock on or subsequent to the Effective Date. It is
intended that the foregoing assumption shall be effected in a manner that is
consistent with the requirements of Section 424 of the Internal Revenue Code of
1986, as amended (the "Code") as to any Security Stock Option that is an
"incentive stock option" (as defined in Section 422 of the Code).


<PAGE>

      2.2   Manner of Exchange of Security Common Stock Certificates

     As promptly as practicable after the Effective Date, F&M shall cause
American Stock Transfer & Trust Company, acting as the exchange agent ("Exchange
Agent"), to send to each former holder of record of Security Common Stock
immediately prior to the Effective Date transmittal materials for use in
exchanging such shareholder's certificates of Security Common Stock for the
consideration set forth in Section 2.1 above. Any dividends paid on any shares
of F&M Common Stock that such shareholder shall be entitled to receive prior to
the delivery to the Exchange Agent of such shareholder's certificates
representing all of such shareholder's shares of Security Common Stock, will be
delivered to such shareholder only upon delivery to the Exchange Agent of the
certificates representing all of such shares (or indemnity satisfactory to F&M
and the Exchange Agent, in their judgment, if any of such certificates are lost,
stolen or destroyed). No interest will be paid on any such dividends to which
the holder of such shares shall be entitled to receive upon such delivery.

      2.3   No Fractional Shares

      No certificates or scrip for fractional shares of F&M Common Stock will be
issued.  In lieu thereof,  F&M will pay the value of such  fractional  shares in
cash on the basis of the Average Closing Price of F&M Common Stock.

      2.4   Dividends

     No dividend or other distribution payable to the holders of record of F&M
Common Stock at or as of any time after the Effective Date shall be paid to the
holder of any certificate representing shares of Security Common Stock issued
and outstanding at the Effective Date until such holder physically surrenders
such certificate for exchange as provided in Section 2.2 of this Plan of Merger,
promptly after which time all such dividends or distributions shall be paid
(without interest).

                                   ARTICLE III
                               BOARD OF DIRECTORS

      At the Effective Date, the Board of Directors of the Continuing Bank shall
consist of all the current directors of F&M  Bank-Northern  Virginia and four of
the current directors of Security designated by Security and approved by F&M.

                                   ARTICLE IV
                              CONDITIONS PRECEDENT

     The obligations of F&M, F&M Bank-Northern Virginia and Security to effect
the Merger as herein provided shall be subject to satisfaction, unless duly
waived, of the conditions set forth in the Agreement.

                                    ARTICLE V
                                   TERMINATION

      This Plan of Merger may be  terminated  at any time prior to the Effective
Date by the parties hereto as provided in Article 6 of the Agreement.


<PAGE>




                                                                     APPENDIX II




                             STOCK OPTION AGREEMENT





<PAGE>




                             STOCK OPTION AGREEMENT

      This STOCK  OPTION  AGREEMENT,  dated as of November 10, 1998 (the "Option
Agreement"),  by and  between  SECURITY  BANK  CORPORATION,  a Virginia  banking
corporation ("Security"),  and F&M NATIONAL CORPORATION,  a Virginia corporation
("F&M").

                                   WITNESSETH

      WHEREAS, the Board of Directors of the parties hereto approved a letter of
intent (the "Letter of Intent")  dated as of the date hereof,  setting forth the
principal terms and conditions to be included in a definitive Agreement and Plan
of Reorganization  and a related Plan of Merger (together  referred to herein as
the "Merger Agreements"), providing for the merger of Security with and into F&M
Bank-Northern  Virginia, a wholly-owned  Virginia banking subsidiary of F&M (the
"Merger"); and

      WHEREAS,  as a condition to and as consideration  for F&M's entry into the
Letter of Intent  and to induce  such  entry and the  subsequent  entry into the
Merger  Agreements,  Security  has  agreed to grant to F&M the  option set forth
herein to acquire  authorized  but  unissued  shares of common stock of Security
("Security Common Stock").

      NOW,  THEREFORE,  in consideration of the premises herein  contained,  the
parties agree as follows:

      1.    Definitions

      Capitalized  terms used in this Option  Agreement  shall have the meanings
ascribed to them herein.

      2.    Grant of Option

      Subject to the terms and  conditions  set forth  herein,  Security  hereby
grants to F&M an option  (the  "Option")  to  acquire  up to  191,300  shares of
Security  Common Stock at a price of $11.00 per share (the "Exercise  Price") in
exchange for the consideration provided in Section 4 hereof; provided,  however,
that in the event  Security  issues or  agrees to issue any  shares of  Security
Common Stock (other than as permitted  under the Merger  Agreements)  at a price
less than  $11.00 per share (as  adjusted  pursuant  to  Section 6 hereof),  the
Exercise  Price shall be equal to such lesser  price.  Notwithstanding  anything
else in this Option Agreement to the contrary,  the number of shares of Security
Common  Stock  subject  to the  Option  shall be  reduced  if and to the  extent
necessary  so that the  number of shares for which  this  Option is  exercisable
shall not exceed 19.9% of the issued and  outstanding  shares of Security Common
Stock,  before giving effect to the exercise of the Option. The number of shares
of Security Common Stock that may be received upon the exercise of the Option is
subject to adjustment as set forth herein.

      3.    Exercise of Option

      (a) Subject to compliance  with  applicable  law and  regulation,  F&M may
exercise  the  Option,  in whole or part,  at any time or from time to time if a
Purchase Event (as defined below) shall have occurred and be continuing.


<PAGE>

      (b) Security shall notify F&M promptly in writing of the occurrence of any
transaction, offer or event giving rise to a Purchase Event. If more than one of
the transactions, offers or events giving rise to a Purchase Event is undertaken
or  effected  by the same  person  or  occurs  at the same  time,  then all such
transactions,  offers and events  shall  give rise only to one  Purchase  Event,
which  Purchase Event shall be deemed  continuing for all purposes  hereof until
all such  transactions  are  terminated or abandoned by such person and all such
events have ceased or ended.

      (c) In the event that F&M wishes to  exercise  the  Option,  it shall send
Security a written  notice  (the date of which being  herein  referred to as the
"Notice  Date")  specifying  (i) the total  number  of  shares  it will  acquire
pursuant  to such  exercise,  and (ii) a place and date not  earlier  than three
business  days nor later  than 60  business  days from the  Notice  Date for the
closing  of such  transaction  (the  "Closing  Date");  provided  that if  prior
notification  to or  approval  of any  federal  or state  regulatory  agency  is
required  in  connection  with such  acquisition,  F&M shall  promptly  file the
required notice or application for approval and shall expeditiously  process the
same and the period of time that  otherwise  would run pursuant to this sentence
shall run instead  from the date on which any required  notification  period has
expired or been  terminated or such approval has been obtained and any requisite
waiting period shall have passed.

      (d) The Option shall expire and  terminate,  to the extent not  previously
exercised, upon the earlier of:

            (1) upon the  termination  of the Letter of Intent as  provided  for
      therein,  except that if Security breaches the  non-solicitation  covenant
      set forth in Paragraph 8 of the Letter of Intent prior to such termination
      date,  then this Option  shall  continue in full force and effect  through
      April 15, 1999, after which date it shall expire and terminate; or

            (2) if the Merger  Agreements  have been entered into by the parties
      hereto,  (A) the date  shown on the  Certificate  of Merger  issued by the
      Virginia  State  Corporation  Commission  effecting  the Merger;  (B) upon
      termination  of the Merger  Agreements in accordance  with the  provisions
      thereof,  other than a termination based upon,  following or in connection
      with either (i) a material breach by Security of a Specified  Covenant (as
      defined  below) or (ii) the  failure  of  Security  to obtain  shareholder
      approval of the Merger  Agreements by the vote required  under  applicable
      law,  in the case that  either  (i) or (ii)  follow  the  occurrence  of a
      Purchase  Event;  or  (C)  12  months  after  termination  of  the  Merger
      Agreements  based  upon a  material  breach  by  Security  of a  Specified
      Covenant or the failure of Security to obtain shareholder  approval of the
      Merger  Agreements by the vote required  under  applicable  law, in either
      case following the occurrence of a Purchase Event.

      (e) As used herein,  a "Purchase  Event"  shall mean any of the  following
events or transactions occurring after the date hereof:

            (1) Security,  without having received F&M's prior written  consent,
      shall have entered into an agreement with any person to (i) acquire, merge
      or consolidate, or enter into any similar transaction, with Security, (ii)
      purchase,  lease or  otherwise  acquire  all or  substantially  all of the
      assets of Security,  or (iii) purchase or otherwise  acquire directly from
      Security  securities  representing  10% or more  of the  voting  power  of
      Security;


<PAGE>

            (2) any person shall have acquired beneficial ownership or the right
      to acquire  beneficial  ownership of 20% or more of the outstanding shares
      of Security  Common  Stock  after the date  hereof  (the term  "beneficial
      ownership"  for  purposes  of this  Option  Agreement  having the  meaning
      assigned thereto in Section 13(d) of the Securities  Exchange Act of 1934,
      as amended, and the regulations promulgated thereunder); or

            (3) any person  shall have made a bona fide  proposal to Security by
      public  announcement  or  written  communication  that is or  becomes  the
      subject  of  public  disclosure  to  acquire  Security  by  merger,  share
      exchange,  consolidation,  purchase  of  all or  substantially  all of its
      assets or any other  similar  transaction,  and  following  such bona fide
      proposal  the  shareholders  of  Security  vote not to approve  the Merger
      Agreements.

      (f) As used herein,  "Specified  Covenant" means any covenant or agreement
contained in the Merger Agreements.

      4.    Payment and Delivery of Certificates

      (a) At the Closing  Date,  F&M shall tender  certified  funds in an amount
equal to the aggregate  Exercise  Price for the number of shares with respect to
which F&M is exercising the Option.

      (b) At such  closing,  Security  shall  deliver  to F&M a  certificate  or
certificates  representing  the  number  of  shares  of  Security  Common  Stock
exchanged  for the  Exercise  Price and F&M shall  deliver to  Security a letter
agreeing that F&M will not offer to sell or otherwise  dispose of such shares in
violation of applicable law or the provisions of this Option Agreement.

      5.    Representations

      Security hereby represents, warrants and covenants to F&M as follows:

      (a)  Security  shall  at all  times  maintain  sufficient  authorized  but
unissued  shares of Security  Common  Stock so that the Option may be  exercised
without authorization of additional shares of Security Common Stock.

      (b) The shares to be issued upon due exercise, in whole or in part, of the
Option,  when paid for as  provided  herein,  will be duly  authorized,  validly
issued, fully paid and nonassessable.

      6.    Adjustment Upon Changes in Capitalization

      In the event of any  change in  Security  Common  Stock by reason of stock
dividends,  split-ups, mergers,  recapitalizations,  combinations,  exchanges of
shares or the like, the type and number of shares subject to the Option, and the
purchase price per share,  as the case may be, shall be adjusted  appropriately.
In the event that any additional  shares of Security  Common Stock are issued or
otherwise become outstanding after the date of this Option Agreement (other than
pursuant to this  Option  Agreement  or pursuant to the  exercise of warrants or
options to acquire shares of Security Common Stock outstanding as of the date of
the  Merger  Agreements  or that may be  issued  after  the  date of the  Merger
Agreements  without  constituting  a breach  thereof),  the  number of shares of
Security  Common Stock  subject to the Option  shall be adjusted so that,  after
such issuance,  it equals 19.9% of the number of shares of Security Common Stock
then  issued and  outstanding  without  giving  effect to any shares  subject or
issued  pursuant to the Option or any shares issued  pursuant to the exercise of
options to acquire shares of Security Common Stock outstanding as of the date of
the  Merger  Agreements  or that may be  issued  after  the  date of the  Merger
Agreements  without  constituting a breach  thereof.  Nothing  contained in this
Section 6 shall be deemed to authorize  Security to breach any  provision of the
Merger Agreements.


<PAGE>

      7.    Severability

      If any term,  provision,  covenant or restriction contained in this Option
Agreement  is held  by a court  or a  federal  or  state  regulatory  agency  of
competent  jurisdiction to be invalid,  void or unenforceable,  the remainder of
the terms,  provisions and covenants and  restrictions  contained in this Option
Agreement  shall  remain  in full  force  and  effect,  and  shall  in no way be
affected,  impaired or  invalidated.  If for any reason such court or regulatory
agency  determines  that the  Option  Agreement  will not  permit  the holder to
acquire the full number of shares of Security Common Stock provided in Section 2
hereof (as adjusted  pursuant to Section 6 hereof),  it is the express intention
of Security to allow the holder to acquire, or to require Security to repurchase
to the extent  permitted  under  applicable law, such number of shares as may be
necessary to comply with such court or regulatory agency's  determination of the
permissible number of shares, without any amendment or modification hereof.

      8.    Miscellaneous

      (a) Expenses.  Except as otherwise  provided  herein,  each of the parties
hereto shall bear and pay all costs and expenses incurred by it or on its behalf
in connection with the transactions  contemplated hereunder,  including fees and
expenses of its own financial consultants,  investment bankers,  accountants and
counsel.

      (b) Entire Agreement.  Except as otherwise expressly provided herein, this
Option Agreement  contains the entire agreement between the parties with respect
to the transactions contemplated hereunder and supersedes all prior arrangements
or  understandings  with  respect  thereto,  written  or  oral.  The  terms  and
conditions of this Option Agreement shall inure to the benefit of and be binding
upon the parties hereto and their respective successors and assigns.  Nothing in
this Option  Agreement,  expressed  or  implied,  is intended to confer upon any
party,  other  than the  parties  hereto  and their  respective  successors  and
assigns, any rights, remedies,  obligations or liabilities under or by reason of
this Option Agreement, except as expressly provided herein.

      (c) Assignment. Neither of the parties hereto may assign any of its rights
or obligations  under this Option  Agreement or the Option created  hereunder to
any other person, without the express written consent of the other party, except
that F&M may  assign  in whole or in part the  Option  and  other  benefits  and
obligations   hereunder   without   limitation   to  any  of  its   wholly-owned
subsidiaries,  and F&M may  assign  in  whole or in part the  Option  and  other
benefits and obligations  hereunder  without  limitation in the event a Purchase
Event shall have  occurred and F&M shall have  delivered to Security a copy of a
letter from the staff of the Commission,  or an opinion of counsel,  in form and
substance  reasonably   satisfactory  to  Security,  to  the  effect  that  such
assignment  will not violate the  requirements of the Securities Act of 1933, as
amended;  provided  that prior to any such  assignment,  F&M shall give  written
notice of the  proposed  assignment  to  Security,  and  within 24 hours of such
notice of a bona fide proposed assignment, Security may purchase the Option at a
price and on other terms at least as  favorable  to F&M as that set forth in the
notice of assignment.

      (d)  Notices.  All notices or other  communications  that are  required or
permitted  hereunder shall be in writing and sufficient if delivered  personally
or sent by registered or certified mail, postage

<PAGE>



prepaid, addressed as follows:

            If to F&M:
                  Alfred B. Whitt
                  F&M National Corporation
                  9 Court Square
                  P. O. Box 2800
                  Winchester, Virginia 22604
                  Tele: (540) 665-4282)

            Copy to:
                  George P. Whitley, Esquire
                  LeClair Ryan, A Professional Corporation
                  707 East Main Street; 11th Floor
                  Richmond, Virginia 23219
                  Tele: (804) 783-2003)

            If to Security:
                  Danny R. May
                  Security Bank Corporation
                  8780 Centreville Road
                  Manassas, Virginia 22210
                  Tele: (703) 361-1986

            Copy to:
                  Jody M. Wagner, Esq.
                  Kaufman & Canoles
                  One Commercial Place
                  Post Office Box 3037
                  Norfolk, Virginia  23514
                  Tele: (757) 624-3000

      (e)  Counterparts.  This Option Agreement may be executed in any number of
counterparts,  and each  such  counterpart  shall be  deemed  to be an  original
instrument,  but  all  such  counterparts  together  shall  constitute  but  one
agreement.

      (f)  Specific  Performance.  The parties  agree that  damages  would be an
inadequate  remedy for a breach of the  provisions  of this Option  Agreement by
either  party  hereto and that this Option  Agreement  may be enforced by either
party hereto through injunctive or other equitable relief.

      (g)  Governing  Law.  This  Option  Agreement  shall  be  governed  by and
construed in accordance with the laws of the  Commonwealth of Virginia,  without
regard to the conflicts of laws principles thereof.


<PAGE>




            IN WITNESS  WHEREOF,  each of the parties  hereto has executed  this
Option Agreement as of the day and year first written above.


                                    SECURITY BANK CORPORATION


                                    By:   /s/ John O. Gregory
                                          -------------------
                                          John O. Gregory
                                          Chairman of the Board



                                    F&M NATIONAL CORPORATION


                                    By:   /s/ Alfred B. Whitt
                                          -------------------
                                          Alfred B. Whitt
                                          President

<PAGE>





                                                                    APPENDIX III





                      OPINION OF SCOTT & STRINGFELLOW, INC.







<PAGE>





                        [Scott & Stringfellow letterhead]


                                February 2, 1999



Board of Directors
Security Bank Corporation
8780 Centreville Road
Manassas, Virginia  22110

Gentlemen:

       You have asked us to render our opinion relating to the fairness,  from a
financial  point of view,  to the  shareholders  of  Security  Bank  Corporation
("Security") of the terms of an Agreement and Plan of Reorganization between F&M
National   Corporation  ("F&M")  and  Security  dated  November  25,  1998  (the
"Agreement").  The  Agreement  provides for the merger of Security with and into
F&M Bank-Northern  Virginia, a subsidiary bank of F&M (the "Merger") and further
provides  that  each  share of Common  Stock of  Security  which is  issued  and
outstanding  immediately  prior to the  Effective  Date of the  Merger  shall be
converted  into a number of shares of F&M Common  Stock whose  aggregate  market
value equals $17.25.

       Scott &  Stringfellow,  as a  customary  part of its  investment  banking
business,  is engaged  in the  valuation  of  financial  institutions  and their
securities   in   connection   with   mergers   and   acquisitions,   negotiated
underwritings, private placements, and valuation for estate, corporate and other
purposes.  We have  acted as  financial  advisor  to the Board of  Directors  of
Security in connection  with the  transaction  described  above. We are familiar
with  Security,  having  acted  as its  financial  advisor  in the past and have
provided certain investment banking services from time to time.

       In developing  our opinion,  we have,  among other  things,  reviewed and
analyzed: (1) the Agreement; (2) the proxy statement/prospectus;  (3) Security's
financial statements for the three years ended December 31, 1997; (4) Security's
unaudited financial statements for the nine months ended September 30, 1998, and
other  internal   information   relating  to  Security  prepared  by  Security's
management;  (5) information  regarding the trading market for the common stocks
of Security and F&M and the price ranges within which the respective stocks have
traded;  (6) the relationship of prices paid to relevant  financial data such as
net worth,  assets,  deposits  and  earnings  in certain  bank and bank  holding
company mergers and  acquisitions in Virginia in recent years;  (7) F&M's annual
reports to shareholders  and its financial  statements for the three years ended
December 31, 1997;  and (8) F&M's  unaudited  financial  statements for the nine
months  ended  1998,  and certain  other  internal  information  relating to F&M
prepared by F&M's  management.  We have  discussed with members of management of
Security and F&M the background to the Merger,  reasons and basis for the Merger
and the business and future  prospects of Security and F&M individually and as a
combined  entity.  Finally,  we have conducted such other studies,  analyses and
investigations,  particularly of the banking industry, and considered such other
information as we deemed appropriate.


<PAGE>

       In conducting our review and arriving at our opinion, we have relied upon
and assumed the accuracy and completeness of the information  furnished to us by
or on behalf of Security and F&M. We have not attempted  independently to verify
such  information,  nor have we made any independent  appraisal of the assets of
Security or F&M. We have taken into account our assessment of general  economic,
financial  market and industry  conditions as they exist and can be evaluated at
the date hereof,  as well as our  experience  in business  valuation in general.
Furthermore,  we are  expressing  no opinion as to the price which F&M's  Common
Stock will trade at in any future time

       Our advisory  services and opinion expressed herein were prepared for the
use of the Board of Directors of Security and do not constitute a recommendation
to the  Security  shareholders  as to how they should  vote at the stockholders,
meeting in  connection  with the  Merger.  We hereby  consent,  however,  to the
inclusion of this opinion as an exhibit to any proxy or  registration  statement
distributed in connection with the Merger.

       On the basis of our  analyses  and review and in reliance on the accuracy
and  completeness  of  the  information  furnished  to us  and  subject  to  the
conditions and  assumptions  noted above, it is our opinion that, as of the date
hereof the terms of the Agreement are fair from a financial point of view to the
shareholders of Security Common Stock.

                              Very truly yours,

                              SCOTT & STRINGFELLOW, INC.



                              By:   /s/ Gary S. Penrose
                                    --------------------------------
                                    Gary S. Penrose
                                    Managing Director
                                    Financial Institutions Group


<PAGE>



                                                                     APPENDIX IV
Security Bank Corporation

1997 Annual Report to Shareholders

<PAGE>


To our shareholders

We are  pleased  to report  that 1997 was an  excellent  year of growth for your
bank.  Assets  increased  13.2%  to  $56,357,879,  net  loans  increased  21% to
$31,933,777, and deposits increased 14.6% to $47,673,682.

Net income for the twelve  months was  $526,201,  a decrease  from the  $641,093
earned during the same period in 1996. The decrease in earnings was  anticipated
as a direct  result of expenses  relative to opening our first branch  office in
the KMart  Center on Sudley  Road in  Manassas.  We believe  the growth of this
office will contribute significantly to the future profitability of the bank. It
should  be  noted  that  in  1997  we  earned  back  all of the  remaining  loss
carryforward from prior years.

Return on average assets was 1.021 % for 1997,  compared to 1.41 % for 1996. The
book value per share of common stock on December 31, 1997 was $8.14  compared to
$7.57 on December  31,1996.  In 1997,  there was a  significant  increase in the
trading price of the bank's common  stock.  At the close of the year,  the stock
was trading  for  $12.875 per share as compared to $8.75 at the end of 1996,  an
increase of 47.1 %. Our stock is traded on the NASDAQ Small Cap market under the
symbol SecurityM.

On May 19,1997, we moved from our temporary Sudley Road office into a beautiful,
newly  constructed  branch office.  The stately brick colonial building complete
with a clock tower,  offers to our customers the  convenience  of three drive-in
windows,  a 24 hour teller (ATM)  machine,  and full banking  services.  Also in
1997, we completed an expensive, but necessary,  mission of upgrading ail of our
computers  and  networking  them  throughout  the bank,  which will  improve our
employee efficiency.  Coming in early 1998, we will introduce 24-hour banking by
phone and debit card to expand our customer service.

Ms. Edna T. Brannan joined the bank as Vice President and Commercial Loan
Officer in February 1997. She brings to us over 17 years of community banking
experience, the majority of which has been here in Prince William County.


[PHOTOS]
John 0. Gregory          Danny R. May


We continue to pursue opportunities to improve and expand our customer services,
as well as to  perfect  our  commitment  to offer the  personal  and  individual
attention you have come to expect from your home town community  bank. On behalf
of the Board of Directors, Management and staff, we thank you for your continued
support.  We encourage  you to stop by your bank,  say hello,  and have a cup of
coffee.

/s/ John O. Gregory
- ----------------------
John O. Gregory
Chairman of the Board

/s/ Danny R. May
- ---------------------
Danny R. May
President
Chief Executive Officer


<PAGE>



Security Bank Corporation
Selected Financial Data

<TABLE>
<CAPTION>

                                                                       Years ended December 31.
(Dollars in thousands, except ratios and per share data)        1997    1996    1995   1994        1993
<S>                                                          <C>     <C>     <C>     <C>          <C>
Income Statement Data:
        Interest income                                      $ 3,769 $ 3,365 $ 3,143 $ 2,544      $ 2,324
        Interest expense                                       1,476   1,348   1,400   1,069          901
                                                             ------- ------- ------- -------      -------
        Net interest income                                    2,293   2,017   1,743   1,475        1,423
        Provision for loan losses                                 48     137     337      90          235
                                                             ------- ------- ------- -------      -------
        Net interest income after
           provision for loan losses                           2,245   1,880   1,406   1,385        1,188
        Noninterest income                                       397     378     408     253          307
        Noninterest expense                                    2,080   1,617   1,612   1,502        1,276
                                                             ------- ------- ------- -------      -------
        Income before income taxes                               562     641     202     136          219
        Income taxes                                              36       -       -       -            -
                                                             ------- ------- ------- -------      -------
        Net income                                           $   526 $   641 $   202 $   136      $   219
                                                             ======= ======= ======= =======      =======
Per Share Data:
        Net income, basic                                    $  0.55 $  0.84 $  0.36 $  0.25      $  0.46
        Net income, diluted                                  $  0.54 $  0.83 $  0.36 $  0.25      $  0.46
        Cash dividends                                             -       -       -       -            -
        Book value at period end                                8.14    7.57    6.79    6.11         6.11
Balance Sheet Data:
        Total assets                                         $56,358 $49,771 $44,278 $40,125      $38,636
        Loans, net                                            31,934  26,376  24,511  21,508       20,536
        Securities                                            17,801  13,980  12,184  11,704        9,035
        Deposits                                              47,674  41,599  39,906  36,529       35,343
        Shareholders' equity                                   7,800   7,251   3,765   3,385        3,166
        Average shares outstanding                               958     765     554     548          472
Performance Ratios:
        Return on average assets                                1.02%   1.41%   0.47%   0.34%        0.63%
        Return on average equity                                7.00   11.48    5.51    3.96         7.77
        Net interest margin (1)                                 5.08    4.96    4.58    4.26         4.74
        Efficiency (2)                                         76.33   67.51   76.25   86.92        76.78
Capital and Liquidity Ratios:
        Leverage                                               13.91%  15.07%   8.58%   8.79%        9.03%
        Risk-based:
            Tier 1 capital                                     19.63   21.80   12.00   12.27        11.88
            Total capital                                      20.70   23.02   12.84   13.52        13.13
        Average loans to average deposits                      64.90   65.40   58.68   58.36        65.04
</TABLE>

(1) Net interest  margin is calculated as net interest income divided by average
    earning assets and represents the Bank's net yield on its earning assets.

(2) Computed by dividing  noninterest  expense by the sum of tax  equivalent net
    interest income and noninterest income, net of securities gains or losses.



<PAGE>



Security Bank Corporation

Management's
Discussion and Analysis

The following  discussion provides information about the major components of the
results of operations and financial condition,  liquidity, and capital resources
of Security Bank  Corporation.  This  discussion and analysis  should be read in
conjunction with the Financial Statements and Notes to the Financial Statements.

Overview

Net income  totaled  $526,201 in 1997, a decrease of 17.92% from 1996.  In 1996,
net income totaled $641,093, a 217.2% increase over 1995 which totaled $202,091.
Basic  earnings  per share \were $.55,  $.84.  and $.36 in  1997,1996,  and 1995
respectively.  Diluted earnings per share were $.54, $.83 and $.36 in 1997. 1996
and 1995  respectively.  Net income  decreased in 1997 due to the opening of our
first branch on Sudley Road in Manassas,  VA, in a temporary location on January
6,1997,  and in the  permanent  location  on May l 9,1997.  Net  income for 1996
increased  due to  improved  net  interest  margin  and  the  reduction  of loan
charge-offs which allowed for a reduction in the provision for loan losses.

Profitability  as  measured  by the Bank 's return on average  assets  (ROA) was
1.02% in 1997,  down from 1.41% in 1996,  and .47% in 1995. The Bank's return on
average assets  decreased in 1997 due to the opening of the new branch location.
Another key  indicator of  performance,  the return on average  equity (ROE) for
1997 was 7.00%,  compared to 1 1 .48% and 5.51 % for 1996 and 1995 respectively.
The decrease in the return on average equity is due to a higher amount of equity
for the entire year of 1997. In 1996 the stock offering added $2.9 million to
equity as of June 24, 1 996.  The ratio of net  income to average  total  assets
(ROA) and on average shareholder's equity (ROE) and certain other ratios for the
periods indicated are presented in the table of Selected Financial Data.

At the end of 1997,  the Bank had total  assets of  $56.358  million,  up $6.587
million, or 13.2% over the previous year-end.  In 1996, there was an increase of
12.4% over year-end 1995,  $2.9 million of which was  attributable  to the stock
offering  in  June  of  1996.  The  growth  in  1997  was  funded  primarily  by
interest-bearing  deposits while the growth in 1996 was funded both by the stock
offering and interest-bearing deposits.

Net Interest Income

Net interest  income is the major  component of the Bank's earnings and is equal
to the  amount  by which  interest  income  exceeds  interest  expense.  The net
interest  margin is net interest  income  expressed as a percentage  of interest
earning   assets.   Changes  in  the  volume  and  mix  of  earning  assets  and
interest-bearing liabilities, as well as their respective yields and rates. have
a  significant  impact on the level of net interest  income and the net interest
margin.

During 1997. net interest  income  increased 13.7% to $2.293 million from $2.017
million in 1996. The Bank's net interest margin increased to 5.08% from 4.96% in
1996 and 4.58% in 1995.  This is primarily due to the increased  earning  assets
and the change in the mix of earning  assets.  In addition,  the 1997 yields are
adjusted  for  tax-equivalent  yield  while the 1996 and 1995  numbers  were not
adjusted  because of the NOL  carryforward.  The yield on average earning assets
increased  to 8.30% in 1997 from  8.27% in 1996 and 8.26% in 1995.  The yield on
average  interest-bearing  liabilities  decreased to 4.38% in 1997,  compared to
4.39% and 4.37% in 1996 and 1995 respectively.  Average earning assets increased
$5.189 million, or 12.8% in 1997. Average interest-bearing liabilities increased
9.8% to $33.703 million during the same period.



<PAGE>

Interest Sensitivity

An important  element of earnings  performance and the maintenance of sufficient
liquidity is proper management of the interest sensitivity position ("GAP"). The
interest sensitivity GAP is the difference between interest sensitive assets and
interest  sensitive  liabilities  in a specific time  interval.  This GAP can be
managed  by  repricing  assets  and/or   liabilities,   by  selling  investments
available-for-sale,  by  replacing  an  asset or  liability  at  maturity  or by
adjusting the interest rate during the life of the asset or liability.  Matching
the amounts of assets and  liabilities  maturing in the same  interval  helps to
hedge interest risk and to minimize the impact on net interest income in periods
of rising or falling interest rates.

The Bank evaluates  interest  sensitivity  risk and then  formulates  guidelines
regarding  asset  generation  and  pricing,  fun ing  sources and  pricing,  and
off-balance  sheet  commitments  in order to decrease  sensitivity  risk.  These
guidelines are based upon  management's  outlook  regarding future interest rate
movements,  the state of the regional and national economy,  and other financial
and business risk factors.

On December 31, 1997,  the Bank held $4.564  million more in  interest-sensitive
assets than  liabilities  that  repriced  within three  months or less,  and was
therefore in an asset-sensitive position. The Bank's cumulative gap continues to
decrease  through  the  end  of  one  year,  thereby  causing  the  Bank  to  be
liability-sensitive  at ($7.719) million.  An asset-sensitive  institution's net
interest margin and net interest income generally will be impacted  favorably by
rising interest rates, while that of a liability-sensitive institution generally
will be impacted favorably by declining interest rates.

Noninterest Income

The Bank's principal sources of noninterest income are service charges and
fees on deposit accounts, particularly transaction accounts. In 1997 noninterest
income increased 5.0% or $18,953. 1996 noninterest income increased $42,866,  or
13.0% over 1995 after  taking into account  one-time  gains on the sale of other
real estate owned.  Service charges on deposit accounts  increased 12.6% in 1997
over  1996 and  30.7% in 1996  over  1995.  The  majority  of this  increase  is
attributed to overdraft charges paid by several customers.

Noninterest Expense

Noninterest expense increased 28.6% or $462,933 in 1997. $191,073 of this change
is an increase in salary and  benefits  due to the opening of the branch  office
and $137,198 is an increase in building and equipment costs  associated with the
new  facility.  Other  operating  costs such as data  processing,  supplies  and
advertising also increased  because of the new facility.  In addition,  the Bank
installed a local area  network in both  offices with a wide area network to tie
the two locations together. This necessitated upgrading most of the computers in
the Bank.  Noninterest  expense  increased  5.5% or $83,908 in 1996 after taking
into  account a writedown  on other real  estate  owned in 1995 in the amount of
$78,606. The increase in 1995 was 2.1% after the above adjustment. Increases in
noninterest  expense  in 1996 can be  attributed  to two new  officers  hired in
November to staff the new branch and the costs  associated  with opening the new
branch on January 6,1997.

Income Taxes

Income tax expense at December  31,1997,  was $35,731,  up from zero in 1996 and
1995. This amount was determined after the utilization of the net operating loss
carryforward  of  $384,525.  Note 7 to the  Financial  Statements  for  year end
provide a reconciliation between the amount of income tax expense computed using
the federal  statutory income tax rate and the Bank's actual income tax expense.
Also included in Note 7 to the Financial Statements is information regarding the
principal items giving rise to deferred taxes for 1997 and 1996.



<PAGE>

Asset Quality - Allowance for Loan Losses

The allowance is to provide for potential losses inherent in the loan portfolio.
Among other factors, management considers the Bank's historical loss experience,
the size and  composition  of the loan  portfolio,  the  value and  adequacy  of
collateral and guarantors,  non-performing  credits, and current and anticipated
economic  conditions.  There are  additional  risks of future loan losses  which
cannot be precisely  quantified or attributed to particular  loans or classes of
loans.  Since those risks include general  economic trends as well as conditions
affecting  individual  borrowers,  the allowance for loan losses is an estimate.
The allowance is also subject to regulatory examinations and determination as to
adequacy,  which may take into account such factors as the  methodology  used to
calculate  the  allowance  and the size of the  allowance in  comparison to peer
banks identified by regulatory agencies.

In 1997,  the Bank had a  provision  expense of $48,000  compared to $137,500 in
1996 and  $337,421 in 1995.  Loans  charged off during 1997  amounted to $78,676
compared  to  $116,195  in 1996 and  $606,031  in 1995.  Recoveries  amounted to
$46,808, $135,322 and $37,138, in 1997,1996, and 1995 respectively. The ratio of
net charge-offs to average  outstanding  loans was .12% in 1997, (.07%) in 1996,
and 2.48% in 1995.

Nonperforming Assets

Total  nonperforming  assets,  which consist of the Bank's  nonaccrual loans and
other real estate owned, were $1.469 million at December 31,1997,  a decrease of
$168,000 from December 31,1996.  The improvement in nonperforming assets was due
to the sale of two of the four  pieces of other real estate  owned  offset by an
increase in nonaccrual loans.

The Bank places a loan on  nonaccrual  status when  management  believes,  after
considering  economic and business conditions and collection  efforts,  that the
borrower's  financial  condition is such that  collection of both  principal and
interest is doubtful. Policy is to place loans on nonaccrual status if principal
or interest is past due for 90 days or more unless the debt is both well secured
and in the process of collection.

Of the total  nonperforming  assets as of December 31, 1997, $662,594 represents
two  pieces  of  property.  This is a  decrease  from  1996 of  $284,243.  These
properties are not currently listed with a real estate agent for sale.

Securities

The securities portfolio plays a primary role in the management of interest rate
sensitivity and generates substantial interest income. In addition the portfolio
serves  as a  source  of  liquidity  and is used as  needed  to meet  collateral
requirements.

At year-end 1997, total  securities were $17.801 million,  up 27.3% from $13.980
million at year-end 1996.  Securities of U.S. Treasury and other U.S. Government
Agencies and Corporations represent 89.4% of the total securities portfolio. The
remainder  consists of investment  grade corporate  securities and one municipal
security of $110,147. The growth of the securities portfolio is primarily due to
the growth in assets and lending  activities that did not keep pace. The greater
majority of the U.S. Government  Agencies are callable.  bonds with varying call
dates.  Although there is a risk that these bonds will be called in a decreasing
rate environment,  the bonds were purchased with the call provision in mind as a
means of funding an increase in the loan portfolio.

Effective  December 31, 1993,  the Bank adopted the  provisions  of Statement of
Financial  Accounting  Standards  ("SFAS")  No.  115,   Accounting  for  Certain
Investments in Debt and Equity Securities. As a result, the securities portfolio
consists  of  two  components,   investment  securities  held  to  maturity  and
securities   available  for  sale.   Securities  are  classified  as  investment
securities based on management's intent and ability, at the time of purchase, to
hold such securities to maturity. These



<PAGE>

securities  are  carried  at  amortized  cost.  Securities  which may be sold in
response to changes in the market  interest  rates,  changes in the  securities'
prepayment risk,  increases in loan demand,  general  liquidity needs, and other
similar  factors  are  classified  as  available  for  sale and are  carried  at
estimated fair market value.

Loan Portfolio

At December  31,1997,  loans,  net of  unearned  income and the reserve for loan
losses,  totaled  $31.934  million,  an increase of 21.1% over the 1996 total of
$26.376 million. Net loans increased 7.6% and 14% in 1996 and 1995 respectively.
The Bank is making a concerted effort to increase the gross  loan/deposit  ratio
from the yearend total of 68%.

The Bank's  lending  activities are its principal  source of income.  The Bank's
loan portfolio is comprised of commercial loans, construction loans, real estate
loans,  and consumer loans.  The primary market in which the Bank makes loans is
Prince William  County  (including the Cities of Manassas and Manassas Park) and
the adjacent  counties of Fauquier and  Fairfax.  The major  portion of the loan
portfolio is in real estate lending.

Deposits

The  Bank's  predominate  source of funds is  depository  accounts.  The  Bank's
deposit base is comprised of demand deposits, savings and money market accounts,
and  time  deposits.  The  Bank's  deposits  are  provided  by  individuals  and
businesses  located  within Prince William County and the Cities of Manassas and
Manassas Park.

Total deposits  increased $6.075 million,  or 14.6%, in 1997 over 1996. In 1997,
this growth was mainly in  interest-bearing  deposits  due to the opening of the
branch and a special certificate of deposit program offered during September and
October 1997 on 1 year CDs. In 1996, total deposits increased $1.693 million, or
4.2% over 1995.

Liquidity

Liquidity  represents  the Bank's  ability to meet present and future  financial
obligations  through  either  the sale or  maturity  of  existing  assets or the
acquisition  of additional  funds through  liability  management.  Liquid assets
include  cash,  interest-bearing  deposits with banks,  federal funds sold,  and
investments  and  loans  maturing  within  one year.  As a result of the  Bank's
management  of liquid  assets and the  ability  to  generate  liquidity  through
liability funding, management believes that the Bank maintains overall liquidity
which  is  sufficient  to  satisfy  its  depositors'  requirements  and to  meet
customers' credit needs.

At December  31,1997,  cash,  securities  maturing  within one year, and federal
funds sold were 9.9% of deposits  plus other  liabilities,  compared to 22.2% at
December 31, 1996.  Most of the loan growth was in the last half of 1997 and was
funded with federal funds sold and maturing or called investments.

Additional  resources  of  liquidity  available  to the Bank  include the Bank's
capacity to borrow additional funds through an established line of credit with a
correspondent bank in an amount not to exceed 50% of capital.

Capital Resources

The assessment of capital  adequacy depends on a number of factors such as asset
quality,  liquidity,  earnings performance,  and changing competitive conditions
and  economic  forces.  The  adequacy  of the  Bank's  capital  is  reviewed  by
management on an ongoing basis. Management seeks to maintain a capital structure
that will  assure an  adequate  level of capital to  support  anticipated  asset
growth and to absorb potential losses.

The Bank's capital position  continues to exceed  regulatory  requirements.  The
primary  indicators  relied  on by bank  regulators  in  measuring  the  capital
position are the Tier 1 capital,  total risk-based capital, and leverage ratios.
Tier 1 capital consists of common stock,  surplus, and retained earnings.  Total
capital  includes  Tier 1 and a  portion  of the  Allowance  for Loan and  Lease
Losses.  Riskbased  capital ratios are calculated with reference to riskweighted
assets. The Bank's Tier 1 capital ratio was 19.6% at December 31,1997,  compared
to 21.8% at December  31,1996.  The total risk-based  capital ratio was 20.7% at
December  31,1997,  compared to 23.0% at December 31, 1996.  These ratios are in
excess of the mandated minimum requirement of 4% and 8% respectively.



<PAGE>


Shareholders'  equity reached $7.800 million at year-end 1997 compared to $7.251
million at year-end 1996. The leverage ratio consists of Tier 1 capital  divided
by average  assets.  At December 31, 1997,  the Bank's  leverage ratio was 15.2%
compared  to 15.1 % at December  31,1996.  Each of these  exceeds  the  required
minimum leverage ratio of 4%.

Impact of Inflation and Changing Prices

The financial statements and related data presented herein have been prepared in
accordance  with  generally  accepted  accounting  principles  which require the
measurement of financial  position and operating  results in terms of historical
dollars,  without  considering changes in the relative purchasing power of money
over time due to inflation.

Virtually  all of the assets and  liabilities  of a  financial  institution  are
monetary in nature. As a result,  interest rates have a more significant  impact
on a financial  institution's  performance than the effects of general levels of
inflation.  Interest rates do not  necessarily  move in the same direction or in
the same  magnitude  as the price of goods and  services,  since such prices are
affected by inflation.  Another impact of inflation is on noninterest  expenses,
which  tend to rise  during  periods of  general  inflation.  The values of real
estate  collateralizing  the  Bank's  loans  and  foreclosed  property  could be
affected by inflation or changing prices due to market conditions.

Other Matters

Year 2000.  The Bank has formed a Year 2000  committee  consisting  of  officers
representing the operating  departments of the Bank. A list has been compiled of
all  the  hardware,   software,  and  equipment  vendors  that  the  Bank  uses.
Assignments  have been made so that each vendor will be  contacted  to determine
their compliance with Year 2000 needs.


The main vendor that could  affect the Bank is an outside  service  bureau which
processes  deposit and loan  accounts,  and general  ledger  transactions.  This
outside  servicer  reported  as of the end of  December  1997  that they are 86%
complete  on their  Year 2000  project  and  testing  of the  system  changes is
expected to be complete by May 1998.

The Bank expects its  hardware,  software,  and equipment to be compliant by the
end of 1998. An on-going part of the project is interaction  with loan customers
regarding  what  each of them  has  done to  bring  their  own  businesses  into
compliance with the needs of the Year 2000.

Accounting Rule Changes

FASB Statement No. 130,  "Reporting  Comprehensive  Income",  was issued in June
1997 and establishes standards for reporting and display of comprehensive income
and its  components  (revenues,  expenses,  gains,  and losses) in a full set of
general-purpose  financial  statements.  This Statement  requires that all items
that are required to be recognized under  accounting  standards as components of
comprehensive income be reported in a financial statement that is displayed with
the same prominence as other financial statements.

This  Statement  requires  that  an  enterprise  (a)  classify  items  of  other
comprehensive  income by their nature in a financial  statement  and (b) display
the accumulated balance of other  comprehensive  income separately from retained
earnings and additional  paid-in capital in the equity section of a statement of
financial position. This Statement is effective for fiscal years beginning after
December 15, 1997.

The  effects of these  Statements  on the Bank's  financial  statements  are not
expected to be material.



<PAGE>

                          INDEPENDENT AUDITOR'S REPORT


To the Board of Directors and Stockholders
Security Bank Corporation
Manassas, Virginia


      We  have  audited  the  accompanying   balance  sheets  of  Security  Bank
Corporation  as of December  31, 1997 and 1996,  and the related  statements  of
income,  stockholders'  equity,  and cash flows for the years ended December 31,
1997, 1996 and 1995. These financial  statements are the  responsibility  of the
Bank's  management.  Our  responsibility  is to  express  an  opinion  on  these
financial statements based on our audits.


      We conducted our audits in accordance  with  generally  accepted  auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement.  An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements.  An audit also includes
assessing the  accounting  principles  used and  significant  estimates  made by
management,  as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.


      In our opinion, the financial statements referred to above present fairly,
in all material respects, the financial position of Security Bank Corporation as
of December 31, 1997 and 1996,  and the results of its  operations  and its cash
flows for the years ended December 31, 1997,  1996 and 1995, in conformity  with
generally accepted accounting principles.



/s/ Yount, Hyde & Barbour, P.C.

Winchester, Virginia
January 7, 1998


<PAGE>



                            SECURITY BANK CORPORATION

                                 Balance Sheets
                           December 31, 1997 and 1996


<TABLE>
<CAPTION>

Assets                                                         1997         1996
                                                           -----------    ---------
<S>                                                        <C>           <C>
Cash and due from banks (Note 8)                           $ 1,856,746   $ 2,985,955
Federal funds sold                                           1,045,000     3,422,000
Securities (fair value:  1997, $17,844,791;
  1996, $13,972,633) (Note 2)                               17,801,393    13,979,524
Loans, net (Notes 3, 4 and 10)                              31,933,777    26,375,537
Other real estate                                              662,594       946,837
Bank premises and equipment (Notes 5 and 8)                  2 344,878     1,568,217
Accrued interest receivable                                    453,909       358,378
Other assets                                                   259,582       134,181
                                                           -----------   -----------
          Total assets                                     $56,357,879   $49,770,629
                                                           ===========   ===========


Liabilities and Stockholders' Equity

Liabilities
  Deposits (Note 6)
    Noninterest-bearing demand deposits                    $12,212,673   $10,468,583
    Savings and interest-bearing demand deposits            11,098,547    11,229,014
    Time deposits                                           24,362,462    19,901,474
                                                           -----------   -----------
          Total deposits                                   $47,673,682   $41,599,071

  Securities sold under agreement to repurchase                430,786       643,739
  Accrued interest payable                                     128,029       109,364
  Other liabilities and accrued expenses                       325,672       167,684
  Commitments and contingent liabilities (Notes 8 and 9)           - -           - -
                                                           -----------   ------------
          Total liabilities                                $48,558,169   $42,519,858
                                                           -----------    -----------

Shareholders' Equity
  Capital stock $5 par value; authorized 3,000,000
    shares, issued and outstanding 958,267 shares
    in 1997 and 1996 (Note 12)                           $   4,791,335   $ 4,791,335
  Surplus                                                    2,678,730     2,678,730
  Retained earnings (deficit) (Note 13)                        320,221      (205,980)
  Unrealized gain (loss) on securities available for
    sale, net                                                    9,424       (13,314)
                                                              --------    ----------
          Total shareholders' equity                       $ 7,799,710    $7,250,771
                                                           -----------    ----------


          Total liabilities and shareholders' equity       $56,357,879   $49,770,629
                                                           ===========   ===========
</TABLE>


See Notes to Financial Statements.


<PAGE>



                                 SECURITY BANK CORPORATION

                                    Statements of Income


<TABLE>
<CAPTION>
                                                                                     Years Ended December 31,
                                                                               1997          1996           1995
                                                                           ------------  ------------   -------------
<S>                                                                        <C>          <C>            <C>
Interest Income
  Interest and fees on loans                                               $ 2,658,092   $ 2,462,502    $ 2,271,197
  Interest on federal funds sold                                               180,331       129,549        171,452
  Interest on investment securities, taxable                                   315,928       226,380        392,306
  Interest and dividends on securities available for sale:
    Taxable                                                                    600,467       537,933        301,744
    Dividends                                                                   13,845         8,904          6,795
                                                                           -----------   -----------    -----------
          Total interest income                                            $ 3,768,663   $ 3,365,268    $ 3,143,494
                                                                           -----------   -----------    -----------
Interest Expense
  Interest on deposits                                                     $ 1,440,628   $ 1,318,844    $ 1,389,745
  Interest on short-term borrowings                                             35,282        27,363         10,328
  Interest on federal funds purchased                                              115         1,742              -
                                                                           -----------   -----------    -----------
                                                                           $ 1,476,025   $ 1,347,949    $ 1,400,073
                                                                           -----------   -----------    -----------
          Net interest income                                              $ 2,292,638   $ 2,017,319    $ 1,743,421

  Provision for loan losses (Note 4)                                            48,000       137,500        337,421
                                                                           -----------   -----------    -----------

          Net interest income after provision for loan losses              $ 2,244,638   $ 1,879,819    $ 1,406,000
                                                                           -----------   -----------    -----------
Other Income
  Fees on deposit accounts                                                 $   366,251   $   325,213    $   241,321
  Other service charges and fees                                                27,922        29,383         29,896
  Securities gains, net                                                              -             -         37,383
  Rent income                                                                        -            90         14,782
  Gain (loss) on sale of other real estate                                      (7,810)        5,547         77,928
  Other operating income                                                        10,637        17,814          6,252
                                                                           -----------   -----------    -----------
                                                                           $   397,000   $   378,047    $   407,562
                                                                           -----------   -----------    -----------

Other Expense
  Salaries and employee benefits                                           $ 1,078,702   $   877,591    $   787,116
  Occupancy expense                                                            190,435       113,929        101,701
  Furniture and equipment expense                                              154,508       109,671        112,976
  Loss on other real estate                                                          -             -         78,606
  Other operating expenses (Note 17)                                           656,061       515,582        531,072
                                                                           -----------   -----------    -----------
                                                                           $ 2,079,706   $ 1,616,773    $ 1,611,471
                                                                           -----------   -----------    -----------

          Income before income taxes                                       $   561,932   $   641,093    $   202,091

  Provision for income taxes (Note 7)                                           35,731             -              -
                                                                           -----------   -----------    -----------

           Net income                                                      $   526,201   $   641,093    $   202,091
                                                                           ===========   ===========    ===========

Earnings per share
Basic (Note 14)                                                            $       .55   $       .84    $       .36
                                                                           ===========   ===========    ===========

Assuming dilution (Note 14)                                                $       .54   $       .83    $       .36
                                                                           ===========   ===========    ===========
</TABLE>

See Notes to Financial Statements.



<PAGE>



                            SECURITY BANK CORPORATION

                  Statements of Changes in Shareholders' Equity


<TABLE>
<CAPTION>
                                                                                    Unrealized
                                                                      Retained      Gain (Loss)      Total
                                             Capital                  Earnings      Available     Shareholders'
                                              Stock       Surplus     (Deficit)      for Sale        Equity
                                          ------------  -----------  ----------  --------------  -------------

<S>                                     <C>            <C>            <C>           <C>         <C>
Balance, December 31, 1994               $ 2,771,000   $ 1,784,251   $(1,049,164)  $  (120,683)  $ 3,385,404
  Net income - 1995                               --            --       202,091            --       202,091
  Change in unrealized gain (loss)
    on securities available for sale              --            --            --       177,752       177,752
                                         -----------   -----------   -----------   -----------   -----------
Balance, December 31, 1995               $ 2,771,000   $ 1,784,251   $  (847,073)  $    57,069   $ 3,765,247
  Net income - 1996                               --            --       641,093            --       641,093
  Sale of common stock - stock
    offering (Note 12)                     2,012,500       892,912            --            --     2,905,412
  Issuance of common stock -
    exercise of warrants (Note 12)             7,835         1,567            --            --         9,402
  Change in unrealized gain (loss)
    on securities available for sale              --            --            --       (70,383)      (70,383)
                                         -----------   -----------   -----------   -----------   -----------

Balance, December 31, 1996               $ 4,791,335   $ 2,678,730   $  (205,980)  $   (13,314)  $ 7,250,771
  Net income - 1997                               --            --       526,201            --       526,201
  Change in unrealized gain (loss)
    on securities available for sale,
    net of deferred income taxes of
    $4,855                                        --            --            --        22,738        22,738
                                         -----------   -----------   -----------   -----------   -----------
Balance, December 31, 1997               $ 4,791,335   $ 2,678,730   $   320,221   $     9,424   $ 7,799,710
                                         ===========   ===========   ===========   ===========   ===========
</TABLE>


See Notes to Financial Statements.


<PAGE>



                                 SECURITY BANK CORPORATION

                                  Statements of Cash Flows

<TABLE>
<CAPTION>
                                                                                         Years Ended December 31,
                                                                                  1997          1996             1995
                                                                              ------------  --------------  -------------
<S>                                                                          <C>            <C>            <C>
Cash Flows from Operating Activities
  Net income                                                                  $   526,201   $    641,093    $    202,091
  Adjustments to reconcile net income to
    net cash provided by operating activities:
      Provision for loan losses                                                    48,000        137,500         337,421
      Depreciation and amortization                                               170,341        113,325         118,246
      Writedown in value of other real estate owned                                    --             --          78,606
      (Gain) loss on other real estate owned                                        7,810         (5,547)        (77,928)
      Net premium amortization (discount accretion)
        on securities                                                               8,673         19,629          (5,039)
      (Gain) on sale of securities                                                     --             --         (37,383)
      (Gain) loss on disposition of fixed assets                                   (8,505)        (9,249)          1,334
      Changes in assets and liabilities:
        (Increase) in accrued interest receivable                                 (95,531)       (17,511)        (65,098)
        Increase in accrued interest payable                                       18,665            447          50,869
        (Increase) decrease in other assets                                       (14,604)         4,117         (39,469)
        Increase (decrease) in other liabilities                                   19,974         30,511         (62,985)
               Net cash provided by operating activities                      $   681,024   $    914,315    $    500,665

Cash Flows from Investing Activities
  Proceeds from maturities and principal payments of
    investment securities                                                    $  2,619,402   $  1,846,613    $  2,721,299
  Proceeds from maturities of securities available for sale                     7,673,941      6,256,810       6,665,514
  Proceeds from sale of securities available for sale                                  --             --       1,828,665
  Purchases of investment securities                                           (5,484,255)    (1,487,549)     (2,664,536)
  Purchases of securities available for sale                                   (8,612,037)    (8,501,256)     (8,810,747)
  Net (increase) in loans                                                      (5,285,477)    (1,929,736)     (3,522,648)
  Purchases of premises and equipment                                            (953,487)       (23,278)       (124,706)
  Proceeds from sale of other real estate                                              --             --         768,458
  Selling expenses on sale of other real estate owned                             (19,178)            --              --
  Proceeds from sale of fixed assets                                               12,200         15,347              --
                                                                             ------------  -------------    ------------
               Net cash (used in) investing activities                       $(10,048,891) $  (3,823,049)   $ (3,138,701)
                                                                             ------------  -------------    ------------
Cash Flows from Financing Activities
  Net increase (decrease) in demand deposits,
    NOW accounts and savings accounts                                        $  1,611,413  $   (370,156)    $  1,985,923
  Net increase in certificates of deposit                                       4,463,198     2,062,918        1,391,521
  Increase (decrease) in securities sold under
    agreement to repurchase                                                      (212,953)      258,714          385,025
  Proceeds from sale of common stock                                                   --     2,914,814               --
                                                                             ------------  -------------    ------------
               Net cash provided by financing activities                     $  5,861,658  $  4,866,290     $  3,762,469
                                                                             ------------  -------------    ------------
</TABLE>


See Notes to Financial Statements.



<PAGE>



                                 SECURITY BANK CORPORATION

                                  Statements of Cash Flows
                                        (Continued)


<TABLE>
<CAPTION>

                                                                                       Years Ended December 31,
                                                                                  1997          1996             1995
                                                                              ------------  --------------  -------------
<S>                                                                          <C>            <C>            <C>

               Increase (decrease) in cash and cash equivalents              $ (3,506,209)  $  1,957,556    $  1,124,433
Cash and Cash Equivalents
  Beginning                                                                     6,407,955      4,450,399       3,325,966
                                                                             ------------   ------------    ------------
  Ending                                                                     $  2,901,746   $  6,407,955    $  4,450,399
                                                                             ============   ============    ============
Supplemental Disclosures of Cash Flow Information:
  Cash payments for Interest                                                 $  1,457,360   $  1,347,502    $  1,349,204
                                                                             ============   ============    ============
   Cash payments for income taxes                                            $     21,462   $         --    $         --
                                                                             ============   ============    ============
Supplemental Disclosure of Noncash Investing and
  Financing Activities
    Other real estate acquired in settlement of loans                        $         --   $         --    $    182,575
                                                                             ============   ============    ============

    Loans originated from sale of other real estate                          $    302,000   $     47,199    $         --
                                                                             ============   ============    ============
    Unrealized gain (loss) on securities available for sale                  $     27,593   $    (70,383)   $    177,752
                                                                             ============   ============    ============
    Unrealized income on loans refinanced                                    $     18,763   $     25,341    $         --
                                                                             ============   ============    ============
    Investments originated through deferred compensation
      agreement                                                              $     32,952   $     17,063    $         --
                                                                             ============   ============    ============
</TABLE>

See Notes to Financial Statements.


<PAGE>



                                 SECURITY BANK CORPORATION

                               Notes to Financial Statements


Note 1.  Summary of Significant Accounting Policies

         The  accounting  and reporting  policies of Security  Bank  Corporation
         conform  to  generally  accepted  accounting   principles  and  to  the
         reporting  guidelines   prescribed  by  regulatory   authorities.   The
         following is a description  of the more  significant  of those policies
         and practices.

         Securities

         Investments are to be classified in three categories and accounted for
         as follows:

         Securities Held to Maturity

         Securities classified as held to maturity are those debt securities the
         Bank has both the intent and ability to hold to maturity  regardless of
         changes  in market  conditions,  liquidity  needs or changes in general
         economic conditions.  These securities are carried at cost adjusted for
         amortization  of premium and  accretion  of  discount,  computed by the
         interest method over their contractual lives.

         Securities Available for Sale

         Securities  classified  as available for sale are those debt and equity
         securities  that the Bank intends to hold for an  indefinite  period of
         time but not  necessarily to maturity.  Any decision to sell a security
         classified  as  available  for sale would be based on various  factors,
         including  significant  movements  in  interest  rates,  changes in the
         maturity mix of the Bank's  assets and  liabilities,  liquidity  needs,
         regulatory   capital   considerations,   and  other  similar   factors.
         Securities  available  for sale are carried at fair  value.  Unrealized
         gains or losses are reported as increases or decreases in stockholders'
         equity.  Realized gains or losses,  determined on the basis of the cost
         of specific securities sold, are included in earnings.

         Trading Securities

         Trading  securities,  which are  generally  held for the short  term in
         anticipation of market gains,  are carried at fair value.  Realized and
         unrealized  gains and losses on trading  account assets are included in
         interest  income  on  trading  account  securities.  The  Bank  had  no
         securities  classified  as trading  securities at December 31, 1997 and
         1996.

<PAGE>

         Loans

         Security Bank Corporation grants commercial, financial, residential and
         consumer loans to customers in Northern Virginia. The loan portfolio is
         well  diversified  and  generally  is  collateralized  by assets of the
         customers.  The  loans  are  expected  to be  repaid  from cash flow or
         proceeds from the sale of selected assets of the borrowers.

         Loans are shown on the balance  sheets net of  unearned  income and the
         allowance for loan losses. Interest is computed by methods which result
         in level  rates of return on  principal.  Loans are charged off when in
         the opinion of  management  they are deemed to be  uncollectible  after
         taking  into  consideration  such  factors  as  the  current  financial
         condition of the customer and the underlying collateral and guarantees.

         The Bank adopted FASB No. 114,  "Accounting by Creditors for Impairment
         of  a  Loan."  This  statement  has  been  amended  by  FASB  No.  118,
         "Accounting by Creditors for Impairment of a Loan - Income  Recognition
         and  Disclosures."  Statement  114,  as  amended,   requires  that  the
         impairment of loans that have been separately identified for evaluation
         is to be measured  based on the present  value of expected  future cash
         flows or,  alternatively,  the observable  market price of the loans or
         the fair value of the  collateral.  However,  for those  loans that are
         collateral  dependent (that is, if repayment of those loans is expected
         to be  provided  solely  by the  underlying  collateral)  and for which
         management  has  determined  foreclosure  is  probable,  the measure of
         impairment  of those  loans  is to be  based  on the fair  value of the
         collateral.   Statement   114,  as  amended,   also  requires   certain
         disclosures  about  investments in impaired loans and the allowance for
         credit losses and interest income recognized on loans.

         The Bank  considers  all  consumer  installment  loans and  residential
         mortgage loans to be homogeneous  loans. These loans are not subject to
         impairment  under FASB 114. A loan is  considered  impaired  when it is
         probable  that the Bank will be unable to  collect  all  principal  and
         interest  amounts  according  to the  contractual  terms  of  the  loan
         agreement.  Factors involved in determining impairment include, but are
         not limited to, expected future cash flows,  financial condition of the
         borrower,  and current  economic  conditions.  A performing loan may be
         considered  impaired,   if  the  factors  above  indicate  a  need  for
         impairment.  A loan on nonaccrual  status may not be impaired if in the
         process  of  collection  or  there  is an  insignificant  shortfall  in
         payment.  An insignificant delay of less than 30 days or a shortfall of
         less than 5% of the required  principal and interest payment  generally
         does not indicate an impairment situation,  if in management's judgment
         the  loan  will  be  paid in  full.  Loans  that  meet  the  regulatory
         definitions of doubtful or loss  generally  qualify as an impaired loan
         under FASB 114.  Charge-offs for impaired loans occur when the loan, or
         portion of the loan is determined to be  uncollectible,  as is the case
         for all loans.

         Loans are placed on nonaccrual when principal or interest is delinquent
         for 90 days or more. Any unpaid  interest  previously  accrued on those
         loans  is  reversed  from  income.  Interest  income  generally  is not
         recognized on nonaccrual loans unless the likelihood of further loss is
         remote.  Interest  payments  received  on such  loans are  applied as a
         reduction  of the loan  principal  balance.  Interest  income  on other
         nonaccrual loans is recognized only to the extent of interest  payments
         received.


<PAGE>

         Allowance for Loan Losses

         The  allowance  for loan  losses is  maintained  at a level  which,  in
         management's  judgment, is adequate to absorb credit losses inherent in
         the  loan   portfolio.   The  amount  of  the  allowance  is  based  on
         management's  evaluation of the  collectibility  of the loan portfolio,
         credit concentrations,  trends in historical loss experience,  specific
         impaired loans, and economic conditions.  Allowances for impaired loans
         are  generally  determined  based on  collateral  values or the present
         value  of  estimated  cash  flows.  The  allowance  is  increased  by a
         provision  for loan losses,  which is charged to expense and reduced by
         charge-offs,  net of recoveries.  Changes in the allowances relating to
         impaired  loans are  charged  or  credited  to the  provision  for loan
         losses.  Because of uncertainties  inherent in the estimation  process,
         management's  estimate of credit losses  inherent in the loan portfolio
         and the related allowance may change in the near term.

         Use of Estimates

         The  preparation of financial  statements in conformity  with generally
         accepted  accounting  principles  requires management to make estimates
         and  assumptions  that  affect  the  reported  amounts  of  assets  and
         liabilities and disclosure of contingent  assets and liabilities at the
         date of the financial  statements and the reported  amounts of revenues
         and expenses during the reporting  period.  Actual results could differ
         from those estimates.

         Other Real Estate

         Real estate  acquired by foreclosure is carried at the lower of cost or
         fair market value less an allowance for estimated  selling  expenses on
         the future disposition of the property.

         Bank Premises and Equipment

         Bank  premises  and  equipment  are  stated  at cost  less  accumulated
         depreciation.  Depreciation is computed using the straight-line  method
         over the estimated  useful lives of 31.5 years for office buildings and
         3 to 10 years for furniture,  equipment and vehicles.  Maintenance  and
         repairs are charged to income as incurred; improvements and betterments
         are capitalized.  When items are retired or otherwise  disposed of, the
         related  costs  and  accumulated  depreciation  are  removed  from  the
         accounts  and  any  resulting  gains  or  losses  are  included  in the
         determination of net income.

         Income Taxes

         Deferred taxes are provided on a liability  method whereby deferred tax
         assets are recognized for deductible temporary  differences,  operating
         loss  carryforwards,   and  tax  credit  carryforwards.   Deferred  tax
         liabilities are recognized for taxable temporary differences. Temporary
         differences are the differences  between the reported amounts of assets
         and liabilities and their tax bases. Deferred tax assets are reduced by
         a valuation  allowance  when, in the opinion of management,  it is more
         likely  than not that some  portion or all of the  deferred  tax assets
         will not be realized.  Deferred tax assets and liabilities are adjusted
         for the  effects  of  changes  in tax  laws  and  rates  on the date of
         enactment.

         Nonrefundable Loan Fees and Costs

         Loan   origination   and  commitment   fees  and  certain  direct  loan
         origination costs are being deferred and the net amount amortized as an
         adjustment of the related loan's yield.

         Earnings Per Share

         In 1997, the Financial  Accounting Standards Board issued Statement No.
         128,  "Earnings per Share."  Statement 128 replaced the  calculation of
         primary  and fully  diluted  earnings  per share with basic and diluted
         earnings  per share.  Basic  earnings  per share  excludes any dilutive
         effects  of  options,  warrants  and  convertible  securities.  Diluted
         earnings per share is very  similar to the  previously  reported  fully
         diluted  earnings per share.  All  earnings  per share  amounts for all
         periods have been presented, and where appropriate, restated to conform
         to the Statement 128 requirements.

<PAGE>

         Cash and Cash Equivalents

         For purposes of the  statements of cash flows,  the Bank  considers all
         highly  liquid  debt  instruments  purchased  with a maturity  of three
         months  or less to be  cash  equivalents.  Cash  and  cash  equivalents
         consist of cash on hand, funds due from banks, and federal funds sold.

         Advertising Costs

         The Bank  follows the policy of charging  the costs of  advertising  to
         expense as they are incurred.


Note 2.  Securities

         Amortized  costs  and  fair  values  of the  securities  being  held to
         maturity as of December 31, 1997 and 1996, are as follows:


<TABLE>
<CAPTION>

                                                                   Gross        Gross
                                                 Amortized      Unrealized   Unrealized     Fair
                                                    Cost           Gains      (Losses)      Value
                                                 ---------      ----------    ---------   ---------
                                                                        1997
                                                 --------------------------------------------------
<S>                                            <C>            <C>            <C>         <C>
       U.S. Treasury securities                 $  200,104      $     271    $      --   $  200,375
       U.S. Governmental corporations and
          agencies                               5,673,724         43,910       (1,009)   5,716,625
       Mortgage-backed securities                  190,391          2,011           --      192,402
       Obligations of states and
         political subdivisions                    110,147             --           --      110,147
       Corporate securities                        743,670          1,914       (3,699)     741,885
                                                -----------       --------   ----------   ----------

                                                $6,918,036      $  48,106    $  (4,708)  $6,961,434
                                                ==========      ==========   ==========   ==========

                                                                        1996
                                                ----------------------------------------------------
       U.S. Treasury securities                 $1,506,805      $   5,887    $  (3,035)  $1,509,657
       U.S. Governmental corporations and
          agencies                               1,595,697          6,589       (1,435)   1,600,851
       Mortgage-backed securities                  211,261             --       (2,582)     208,678
       Corporate securities                        741,565             --      (12,315)     729,251
                                               -----------      ----------   -----------  ----------
                                                $4,055,328      $  12,476    $ (19,367)  $4,048,437
                                               ===========      ==========   ===========  ==========
</TABLE>

         The amortized cost and fair value of securities  being held to maturity
         as of December 31, 1997, by  contractual  maturities,  are shown below.
         Maturities may differ from  contractual  maturities in  mortgage-backed
         securities  because the  mortgages  underlying  the  securities  may be
         called or repaid without any penalties. Therefore, these securities are
         not included in the maturity categories in the maturity summary.

                                                     Amortized       Fair
                                                       Cost          Value
                                                    -----------   ----------
                                                              1997
                                                    ------------------------
             Due in one year or less                $  600,104    $  599,275
             Due after one through five years        2,985,062     3,003,190
             Due after five through ten years        3,032,332     3,056,420
             Due after ten years                       110,147       110,147
             Mortgage-backed securities                190,391       192,402
                                                    ----------    ----------

                                                    $6,918,036    $6,961,434
                                                    ==========    ==========



          Amortized costs and fair values of securities available for sale as of
          December 31, 1997 and 1996, are as follows:

<TABLE>
<CAPTION>

                                                                       Gross        Gross
                                                     Amortized      Unrealized   Unrealized     Fair
                                                       Cost            Gains      (Losses)      Value
                                                    ----------     ------------  ----------   ---------
                                                                              1997
                                                    ---------------------------------------------------
<S>                                                 <C>            <C>            <C>          <C>
       U.S. Treasury securities                    $   906,029     $     1,752   $      --  $   907,781
       U.S. Governmental corporations and
          agencies                                   8,768,488          28,122     (13,307)   8,783,303
       Mortgage-backed securities                      165,921              --      (3,268)     162,653
       Corporate securities                            748,540           1,113        (133)     749,520
       Other securities                                280,100              --          --      280,100
                                                    ----------      ----------   ---------   ----------
                                                   $10,869,078     $    30,987   $ (16,708) $10,883,357
                                                   ===========      ==========    ========  ===========
                                                                              1996
                                                   ----------------------------------------------------
       U.S. Treasury securities                    $ 1,610,837     $     3,107   $  (1,506) $ 1,612,438
       U.S. Governmental corporations and
          agencies                                   6,765,871          24,385     (44,442)   6,745,814
       Mortgage-backed securities                      241,849           2,556          --      244,405
       Corporate securities                          1,050,453           4,944      (2,358)   1,053,039
       Other securities                                268,500              --          --      268,500
                                                    ----------      ----------   ---------   ----------
                                                   $ 9,937,510     $    34,992   $ (48,306) $ 9,924,196
                                                    ==========      ==========   =========   ==========
</TABLE>

         The amortized  cost and fair value of securities  available for sale as
         of December  31,  1997,  by  contractual  maturities,  are shown below.
         Expected  maturities  may differ from  contractual  maturities  because
         borrowers may have the right to call or prepay obligations.


                                                    Amortized       Fair
                                                      Cost          Value
                                                    -----------   ----------
                                                              1997
             Due in one year or less                $ 1,296,120   $ 1,297,655
             Due after one through five years         6,121,712     6,135,162
             Due after five through ten years         3,005,225     3,007,787
             Mortgage-backed securities                 165,921       162,653
             Other                                      280,100       280,100
                                                     ----------    ----------

                                                    $10,869,078   $10,883,357
                                                    ===========   ===========


          Proceeds from  maturities and principal  payments of securities  being
          held  to  maturity  during  1997,  1996  and  1995  were   $2,619,402,
          $1,846,613 and $2,721,299.
          There were no sales during 1997, 1996 and 1995.

          Proceeds from sales and  maturities  of securities  available for sale
          during 1997, 1996 and 1995 were $7,673,941, $6,256,810 and $8,494,179.
          Gross  realized gains of $37,383 were realized on those sales in 1995.
          There were no sales during 1997 or 1996.

          Securities  having  a book  value  of  $2,921,201  and  $2,969,735  at
          December 31, 1997 and 1996, were pledged to secure public deposits and
          for other purposes required by law.




<PAGE>


Note 3.   Loans, Net

          Net loans at December 31, 1997 and 1996, are summarized as follows:

                                                           1997          1996
                                                       -------------------------
                                                              (Thousands)
          Loans secured by real estate:
            Construction and land development           $    3,256     $  1,524
            Secured by 1-4 family residential properties     4,180        3,381
            Secured by nonfarm nonresidential properties    17,148       14,943
          Commercial and industrial loans                    5,062        4,274
          Consumer loans                                     2,761        2,667
          Other                                                 27           52
                                                        ----------     --------
                          Total loans                   $   32,434     $ 26,841
                                                        ----------     --------

          Deduct:
            Unearned income                             $       75     $     56
            Allowance for loan losses                          425          409
                                                        ----------     --------
                                                         $     500     $    465
                                                        ----------     --------


                                                         $  31,934     $ 26,376
                                                        ==========     ========

Note 4.   Allowance for Loan Losses

          Changes in the allowance for loan losses for the years ended  December
          31, 1997, 1996 and 1995, were as follows:

                                                     1997      1996       1995
                                                  --------   --------  --------
            Balance at beginning of year          $408,688   $252,061  $483,533
            Provision charged to operating expense  48,000    137,500   337,421
            Loan recoveries                         46,808    135,322    37,138
            Loan charge-offs                       (78,676)  (116,195) (606,031)

            Balance at end of year                $424,820   $408,688  $252,061
                                                  ========   ========  ========


          Information  about  impaired  loans  as of and  for  the  years  ended
          December 31, 1997 and 1996 is as follows:

                                                               1997       1996
                                                             ---------  --------
            Impaired loans for which an allowance
              has been provided                             $ 441,488  $ 448,389
            Impaired loans for which no allowance
              has been provided                                    --         --
                                                            ---------   --------

                   Total impaired loans                     $ 441,488  $ 448,389
                                                            =========   ========
            Allowance provided for impaired loans,
              included in the allowance for loan losses     $ 117,627  $ 118,469

            Average balance in impaired loans               $ 449,473  $ 457,162

            Interest income recognized                      $   5,961  $   7,763

          Nonaccrual  loans which were excluded  from  impaired loan  disclosure
          under FASB 114  amounted to $364,213 and $247,433 at December 31, 1997
          and 1996,  respectively.  If interest on these loans had been accrued,
          such income would have  approximated  $16,460 and $15,824 for 1997 and
          1996, respectively.

<PAGE>

Note 5.   Bank Premises and Equipment

          Bank premises and equipment are  summarized as follows at December 31,
          1997 and 1996:

                                                     1997          1996
                                                    -------      -------
          Land                                    $  477,204    $  477,204
          Bank building                            1,277,562     1,277,562
          Leasehold improvements                     491,484          --
          Furniture and equipment                  1,024,840       680,909
          Vehicle                                     28,326        27,022
                                                  ----------    ----------
                                                  $3,299,416    $2,462,697
          Less accumulated depreciation

            and amortization                         954,538       894,480
                                                  ----------    ----------
                                                  $2,344,878    $1,568,217
                                                  ==========    ==========


          Depreciation  and  amortization  expense  included  in  the  operating
          expenses amounted to $170,341, $113,325 and $118,246 in 1997, 1996 and
          1995, respectively.


Note 6.   Deposits

         The  aggregate  amount  of jumbo  time  deposits,  each  with a minimum
         denomination of $100,000,  was approximately  $7,028,809 and $6,377,190
         in 1997 and 1996, respectively. At December 31, 1997,  the  scheduled
         maturities  of time deposits (in  thousands) are as follows:


         (Dollars in thousands)                       1997
                                                      ----

         Three months or less                       $ 4,133
         Over three months through twelve months     15,965
         Over one year through three years            3,755
         Over three years                               509
                                                     -------
                                                    $24,362
                                                     =======



Note 7.  Income Taxes

         Net  deferred  tax assets  consist of the  following  components  as of
         December 31, 1997 and 1996:

                                                       1997               1996
                                                      ------              ------
           Deferred tax assets:
              Deferred compensation               $   19,943           $   --
              Other real estate expense               30,131             41,923
              Interest on nonaccrual loans            6, 291             50,249
              Loss carryforward                         --              138,465
              Deferred loan fees                       2,621              3,494
              Unrealized gain on other
                real estate                           10,993              7,378
              AMT credit carryforwards                79,411              8,962
              Securities available for sale             --                4,527
                                                    ---------          ---------
                                                  $  204,390           $254,998
                                                    ----------         ---------
           Deferred tax liabilities:
              Property and equipment              $   28,707           $ 23,830
              Allowance for loan losses               71,418             87,738
              Securities available for sale            4,855               --
                                                   ---------           ---------
                                                  $  104,980           $111,568
                                                  ----------           --------
                                                  $   99,410           $143,430

           Less:  valuation allowance                   --             (143,430)
                                                     -------           ---------
                                                  $   99,410           $   --
                                                  ==========           =========


<PAGE>

         The  provision  for income taxes  charged to  operations  for the years
         ended December 31, 1997, 1996 and 1995, consists of the following:

<TABLE>
<CAPTION>


                                               1997         1996         1995
                                             ----------  ---------  -----------
<S>                                            <C>            <C>         <C>


          Current tax expense               $ 198,741     $   8,962     $    --
          Deferred tax expense (benefit)      (24,854)      156,310        50,142
          Benefit of net operating loss      (138,156)     (165,272)      (50,142)
                                            ---------     ---------     ---------
                                            $  35,731     $    --       $    --
                                            =========     =========     =========
</TABLE>




         The income tax expense differs from the amount of income tax determined
         by  applying  the U.S.  federal  income tax rate to pretax  income from
         continuing  operations for the years ended December 31, 1997,  1996 and
         1995, due to the following:

<TABLE>
<CAPTION>


                                                                  1997           1996         1995
                                                                 --------     ----------    ---------
<S>                                                                 <C>          <C>             <C>


          Computed "expected" tax expense                        $ 191,057     $ 217,972     $  62,065
          Increase (decrease) in income taxes resulting from:
              Tax-exempt interest                                  (20,951)      (17,555)      (17,450)
              Benefit of net operating loss                       (138 156      (165,272       (50,142)
              Other                                                  3,781       (35,145)        5,527
                                                                 ---------     ---------     ---------
                                                                 $  35,731     $    --       $    --
                                                                 =========     =========     =========
</TABLE>



         At December 31, 1996, the Bank had net operating loss  carryforwards of
         $407,250  available under provisions of the Internal Revenue Code to be
         applied against future federal taxable income. These carryforwards were
         fully utilized in 1997.


Note 8.  Commitments and Contingent Liabilities

         In the  normal  course  of  business,  there  are  outstanding  various
         commitments and contingent liabilities,  which are not reflected in the
         accompanying  financial  statements.  The Bank does not  anticipate any
         material loss as a result of these transactions.

         As a member of the  Federal  Reserve  System,  the Bank is  required to
         maintain  certain  average  reserve  balances.  Those reserve  balances
         include  usable  vault cash and  amounts on  deposit  with the  Federal
         Reserve.  For the final  weekly  reporting  period  in the years  ended
         December  31,  1997 and  1996,  the  amount of daily  average  required
         balances was approximately $557,000 and $726,000.

         The Bank entered into a ten-year  noncancellable  lease agreement for a
         branch  location  on July 11,  1996.  This  lease  requires  payment of
         certain  operating  expenses and contains a renewal  option  clause for
         four additional  five-year terms.  The total minimum rental  commitment
         under  the lease is  $598,542  at  December  31,  1997  which is due as
         follows:

           Due in the year ending December 31,
                                      1998           $    65,000
                                      1999                65,000
                                      2000                65,000
                                      2001                65,000
                                      2002                65,000
                                                        --------
                                      Later years        273,542
                                                        ---------
                                                      $  598,542
                                                       ==========
<PAGE>


Note 9.  Financial Instruments With Off-Balance-Sheet Risk

         The Bank is a party to  financial  instruments  with  off-balance-sheet
         risk in the normal  course of business to meet the  financing  needs of
         its  customers.   These  financial  instruments  consist  primarily  of
         commitments  to extend  credit and  standby  letters  of credit.  These
         instruments  involve,  to varying  degrees,  elements of credit risk in
         excess of the amount  recognized in the balance sheet.  The contract or
         notional amounts of those instruments reflect the extent of involvement
         the Bank has in particular classes of financial instruments.

         The Bank's  exposure to credit loss in the event of  nonperformance  by
         the other party to the financial  instrument for  commitments to extend
         credit  is  represented  by the  contractual  notional  amount of those
         instruments.   The  Bank  uses  the  same  credit  policies  in  making
         commitments and conditional obligations as it does for on-balance-sheet
         instruments.

                                                           Contract or
                                                         Notional Amount
                                                       ---------------------
                                                       1997           1996
                                                       ---------------------
           Financial instruments whose contract
             amounts represent credit risk
               Commitments to finance real estate
                 acquisitions and construction      $2,678,729    $1,221,000
               Unfunded lines-of-credit              3,473,543     2,810,000
               Letters of credit                       121,562       283,000
                                                    ----------      --------
               Total                                $6,273,834    $4,314,000
                                                    ==========    ==========


         Commitments  to extend  credit are  agreements to lend to a customer as
         long as there  is no  violation  of any  condition  established  in the
         contract.  Commitments  generally have fixed  expiration dates or other
         termination clauses and may require payment of a fee. Since many of the
         commitments  are expected to expire without being drawn upon, the total
         commitment   amounts  do  not   necessarily   represent   future   cash
         requirements.  The Bank evaluates each customer's creditworthiness on a
         case-by-case  basis.  The amount of collateral,  if deemed necessary by
         the Bank upon  extension  of credit,  is based on  management's  credit
         evaluation of the  counterparty.  Collateral  normally consists of real
         property.

         Standby  letters of credit are  conditional  commitments by the Bank to
         guarantee  the  performance  of a  customer  to a  third  party.  Those
         guarantees are primarily issued to support public and private borrowing
         arrangements,  including commercial paper, bond financing,  and similar
         transactions.

         The credit risk  involved in issuing  letters of credit is  essentially
         the same as that  involved in extending  loan  facilities to customers.
         The Bank holds real estate and bank deposits as  collateral  supporting
         those commitments for which collateral is deemed necessary.  The extent
         of collateral held for those  commitments at December 31, 1997,  varies
         from 0 percent to 100 percent; the average amount  collateralized is 70
         percent.




<PAGE>

Note 10. Related Party Transactions

         The Bank has had,  and may be expected  to have in the future,  banking
         transactions  in  the  ordinary  course  of  business  with  directors,
         principal officers,  their immediate families and affiliated  companies
         in which  they are  principal  stockholders  (commonly  referred  to as
         related  parties),  on the same  terms,  including  interest  rates and
         collateral, as those prevailing at the time for comparable transactions
         with  others.  These  persons  and firms were  indebted to the Bank for
         loans totaling $2,563,287 and $1,410,488 at December 31, 1997 and 1996,
         respectively.  During 1997,  total principal  additions were $1,561,093
         and total principal payments were $408,294.

         In  1997,  the Bank  had  business  dealings  with  companies  owned by
         directors  of the Bank.  Expenditures  made to these  companies in 1997
         include  insurance  expense of  $17,157,  engineering  fees of $12,485,
         automobile  purchase  of $28,326 and  capital  expenditures  related to
         branch construction of $425,390.


Note 11. Stock Option Plans

         In 1997, the shareholders approved the 1996 Employee Stock Option Plan.
         The plan allows for  incentive  stock  options and  nonqualified  stock
         options.  200,000  shares of the Bank's Common Stock have been reserved
         for the issuance of stock  options under the Employee  Plan.  The Board
         granted  32,150  options to key employees of the Bank at $9.09.  Of the
         32,150  options,  a total of 19,250 were vested as of December 31, 1997
         with the  remaining  options  vesting 4,300 per year on December 31 for
         the next three years.  The options expire five years following the date
         of vesting.

         In 1997, the shareholders approved the 1996 Director Stock Option Plan.
         100,000  shares of the Bank's  Common Stock have been  reserved for the
         issuance of stock options under the Director  Plan.  The exercise price
         of all stock  options  under the Director Plan is the fair market value
         of the Common Stock on the date of grant.  Directors  have  received an
         initial option to purchase 19,200 shares,  of which 100% are vested, at
         $8.00.  Directors also received an additional option to purchase 28,800
         shares at $8.43,  of which 9,600  shares were vested as of December 31,
         1997 with the remaining  options  vesting 9,600 per year on December 31
         for the next two years.  The options  expire five years  following  the
         date of vesting.

         Under the Employee and Director  Plans,  in no event may the shares for
         which awards may be granted  under the plans exceed 11.5% of the issued
         and  outstanding  shares of Common  Stock of the Bank at any time.  All
         shares vest immediately upon change of control of the Bank.

         The fair value of each employee-related grant is estimated at the grant
         date using the  Black-Scholes  option-pricing  model with the following
         weighted-average  assumptions for grants in 1997:  Dividend rate of 0%,
         price  volatility  of  12.73%,  risk-free  interest  rate of 5.31%  and
         expected lives of 5 years.




<PAGE>



         The Bank  applies APB  Opinion 25 in  accounting  for its stock  option
         plans.  Accordingly,  no  compensation  expense has been recognized for
         1997. Had compensation  cost been determined on the basis of fair value
         pursuant to FASB  Statement  No. 123, net income and earnings per share
         would have been as follows:

                                                         1997
           Net income

            As reported                             $  526,201
                                                    ==========
            Proforma                                $  490,296
                                                    ==========


           Basic earnings per share

            As reported                             $      .55
                                                    ==========
            Proforma                                $      .51
                                                    ==========


           Diluted earnings per share

            As reported                             $      .54
                                                    ==========
            Proforma                                $      .50
                                                    ==========


         The status of the stock option plans during 1997 is as follows:

<TABLE>
<CAPTION>

                                                     1996 Employee                1996 Director
                                                   Stock Option Plan           Stock Option Plan

                                                                 Weighted                   Weighted
                                                   Number        Average    Number          Average
                                                     of          Exercise      of           Exercise
                                                   Shares         Price     Shares            Price
                                                  --------      ---------   -------       ---------
<S>                                               <C>              <C>       <C>              <C>
           Outstanding at January 1, 1997         $    --         $   --        --         $    --
           Granted during 1997                       32,150         9.09     48,000            8.26
           Exercised during 1997                       --             --        --              --
           Forfeited during 1997                       --             --        --              --
                                                    -------                  -------
           Outstanding at December 31, 1997          32,150         9.09     48,000            8.26
                                                    =======                 =======
           Weighted average fair value of
            options granted during 1997           $    2.31                 $  2.11
                                                    =======                 =======
</TABLE>




         The  status of the  options  outstanding  at  December  31,  1997 is as
follows:

                                          Remaining
                  Exercise                Contractual
                  Price       Number      Life in Years
               ----------    -------      --------------

               $  9.09        14,950            4
                  9.09        4,300             5
                  9.09        4,300             6
                  9.09        4,300             7
                  9.09        4,300             8
                  8.00        19,200          3.5
                  8.43        9,600             5
                  8.43        9,600             6
                  8.43        9,600             7

<PAGE>



Note 12. Capital Stock

         At the Bank's Annual Meeting of  Stockholders  held on May 1, 1996, the
         stockholders   approved  an  amendment   to  the  Bank's   Articles  of
         Incorporation  increasing  the  number of shares of common  stock  from
         1,500,000 to 3,000,000.

         In June,  1996,  the Bank sold 402,500  shares of its common stock in a
         public  offering.  Net  proceeds  from the sale were  $2,905,412  after
         deducting  underwriting  commissions  of $184,400  and direct  offering
         costs of  $80,188.  Of the net  proceeds,  $2,012,500  was  credited to
         common stock and $892,912 was credited to surplus.

         On  September  15, 1993,  Security  Bank  Corporation  offered for sale
         168,000 shares of common stock with one common stock  purchase  warrant
         ("warrant") attached to every four shares. A total of 35,906 and 48,452
         shares were sold as of December  31,  1994 and 1993,  respectively,  at
         $6.00 per share.  Proceeds  totaled  $215,436  in 1994 and  $281,590 in
         1993.

         Total warrants issued in the offering were 21,077.  Warrants  exercised
         totaled -0-, 1,567 and -0- in 1995, 1996 and 1997, respectively.  As of
         December 31, 1997, warrants  outstanding  totaled 19,460.  Warrants are
         transferable  and entitle  the holder to  purchase  one share of common
         stock at a price of $6.00 per share for a  five-year  period  ending on
         December 1, 1998.




<PAGE>



Note 13. Retained Earnings

         Federal  regulations  limit the amount of dividends  which the Bank can
         pay without  obtaining prior approval and,  additionally,  require that
         the Bank  maintain a ratio of total  capital  to assets,  as defined by
         regulatory authorities. As of December 31, 1997, the Bank could declare
         dividends up to $320,221 or 4.1% of net assets without prior approval.


Note 14. Earnings Per Share

         The  following  shows the  weighted  average  number of shares  used in
         computing  earnings per share and the effect on weighted average number
         of shares of diluted potential common stock.  Potential dilutive common
         stock  had no  effect  on  income  available  to  common  shareholders.
         Earnings per share amounts for prior periods have been restated to give
         effect to the  application  of  Statement  128 which was adopted by the
         Bank in 1997.

<TABLE>
<CAPTION>



                                                      Per Share            Per Share            Per Share
                                             Shares    Amount     Shares    Amount     Shares     Amount
                                                   1997                1996                  1995
                                             ------------------   ------------------   ------------------
<S>                                          <C>        <C>        <C>         <C>      <C>       <C>
         Basic earnings per share           958,267   $    .55   765,496   $    .84   554,200   $   .36
                                                        ========             ========             =======
         Effect of dilutive securities:
             Stock options                    14,039                 --                    --
             Warrants                          7,756                5,439                  863
                                             -------              -------              -------
         Diluted earnings per share          980,062   $    .54   770,935   $    .83   555,063   $   .36
                                             =======   =========  =======   ========   =======   =======
</TABLE>


<PAGE>




Note 15. Disclosures About Fair Value of Financial Instruments

         The following  methods and  assumptions  were used to estimate the fair
         value  of  each  class  of  financial   instruments  for  which  it  is
         practicable to estimate that value:

         Cash and Short-Term Investments

         For those short-term  instruments,  the carrying amount is a reasonable
         estimate of fair value.

         Securities

         For securities held for investment  purposes,  fair values are based on
         quoted market prices or dealer quotes.

         Loan Receivables

         For certain homogeneous categories of loans, such as some residential
         mortgages, and other consumer loans, fair value is estimated using the
         quoted market prices for securities backed by similar loans, adjusted
         for differences in loan characteristics. The fair value of other types
         of loans is estimated by discounting the future cash flows using the
         current rates at which similar loans would be made to borrowers with
         similar credit ratings and for the same remaining maturities.

         Deposit Liabilities

         The fair value of demand deposits,  savings accounts, and certain money
         market  deposits is the amount payable on demand at the reporting date.
         The fair value of  fixed-maturity  certificates of deposit is estimated
         using the rates  currently  offered for  deposits of similar  remaining
         maturities.

         Off-Balance Sheet Financial Instruments

         The fair value of commitments  to extend credit is estimated  using the
         fees currently charged to enter similar agreements, taking into account
         the remaining terms of the agreements and the present  creditworthiness
         of the counterparties. For fixed-rate loan commitments, fair value also
         considers the difference  between  current levels of interest rates and
         the committed rates.

         The fair value of stand-by letters of credit is based on fees currently
         charged for similar  agreements or on the  estimated  cost to terminate
         them or otherwise settle the obligations with the counterparties at the
         reporting date.

         At December 31, 1997 and 1996, the carrying  amounts and fair values of
         loan commitments and stand-by letters of credit were immaterial.

<PAGE>



            The estimated fair values of the Bank's financial instruments are as
follows:

<TABLE>
<CAPTION>



                                                Carrying       Fair      Carrying      Fair
                                                 Amount        Value      Amount       Value
                                                --------      -------    --------    -------
(Dollars in thousands)                                   1997                     1996
<S>                                                <C>        <C>          <C>        <C>


          Financial assets:
            Cash and short-term investments     $  2,902     $  2,902    $  6,408     $  6,408
            Securities                            17,801       17,845      13,980       13,973
            Loans                                 32,359       32,012      26,785       26,359
            Less:  allowance for loan losses        (425)        --          (409)        --
                                                --------     --------    --------     --------
                Total financial assets          $ 52,637     $ 52,759    $ 46,764     $ 46,740
                                                ========     ========    ========     ========


          Financial liabilities:
            Deposits                            $ 47,674     $ 47,700    $ 41,599     $ 41,609
            Short-term borrowings                    431          431         644          644
                                                --------     --------    --------     --------

               Total financial liabilities      $ 48,105     $ 48,131    $ 42,243     $ 42,253
                                                ========     ========    ========     ========
</TABLE>
<PAGE>




Note 16. Capital Requirements

         The  Bank  is  subject  to  various  regulatory  capital   requirements
         administered by the federal banking  agencies.  Failure to meet minimum
         capital   requirements  can  initiate  certain   mandatory  -  possibly
         additional  discretionary - actions by regulators  that, if undertaken,
         could have a direct material effect on the Bank's financial statements.
         Under capital  adequacy  guidelines  and the  regulatory  framework for
         prompt  corrective   action,   the  Bank  must  meet  specific  capital
         guidelines  that involve  quantitative  measures of the Bank's  assets,
         liabilities,  and certain  off-balance-sheet  items as calculated under
         regulatory  accounting  practices.   The  Bank's  capital  amounts  and
         classification  are  also  subject  to  qualitative  judgments  by  the
         regulators about components, risk weightings, and other factors.

         Quantitative  measures  established  by  regulation  to ensure  capital
         adequacy  require the Bank to maintain  minimum amounts and ratios (set
         forth in the table below) of total and Tier 1 capital to  risk-weighted
         assets, and of Tier 1 capital to average assets.  Management  believes,
         as of  December  31,  1997,  that the Bank meets all  capital  adequacy
         requirements to which it is subject.

         As of December 31, 1997, the most recent  notification from the Federal
         Reserve  Bank  categorized  the  Bank as  well  capitalized  under  the
         regulatory framework for prompt corrective action. To be categorized as
         well capitalized, the Bank must maintain minimum total risk-based, Tier
         1  risk-based,  and Tier 1  leverage  ratios as set forth in the table.
         There  are  no  conditions  or  events  since  that  notification  that
         management believes have changed the institution's category.





<PAGE>



         The Bank's actual capital  amounts and ratios are also presented in the
         table.

<TABLE>
<CAPTION>
                                                                                                         To Be Well
                                                                                                       Capitalized Under
                                                                                For Capital            Prompt Corrective
                                                             Actual           Adequacy Purposes        Action Provisions
                                                         Amount   Ratio       Amount      Ratio         Amount    Ratio
                                                         ------   -----       ------      -----         -------   ------
<S>                                                        <C>    <C>            <C>       <C>            <C>       <C>
(Amount in Thousands)
As of December 31, 1997:
  Total Capital (to Risk  Weighted Assets)              $  8,215   20.70%     > $ 3,174    > 8.0%     > $ 3,968   > 10.0%
                                                                              -            -          -           -
  Tier 1 Capital (to Risk Weighted Assets)              $  7,790   19.63%     > $ 1,587    > 4.0%     > $ 2,381   >  6.0%
                                                                              -            -          -           -
  Tier 1 Capital (to Average Assets)                    $  7,790   13.91%     > $ 2,241    > 4.0%     > $ 2,801   >  5.0%
                                                                              -            -          -           -
As of December 31, 1996:
  Total Capital (to Risk Weighted Assets)               $  7,672   23.02%     > $ 2,666    > 8.0%     > $ 3,333   > 10.0%
                                                                              -            -          -           -
  Tier 1 Capital (to Risk Weighted Assets)              $  7,264   21.80%     > $ 1,333    > 4.0%     > $ 2,000   >  6.0%
                                                                              -            -          -           -
  Tier 1 Capital (to Average Assets)                    $  7,264   15.07%     > $ 1,962    > 4.0%     > $ 2,452   >  5.0%
                                                                              -            -          -           -
</TABLE>



Note 17. Other Expenses

         The  principal  components  of "Other  expenses" in the  Statements  of
         Income are:

                                                  1997        1996        1995
                                            ------------  ----------  ----------


         Miscellaneous OREO expenses           $  3,758    $  5,506    $ 25,130
         Printing, stationery and supplies       69,406      46,586      45,008
         FDIC assessment                         16,476      13,604      66,161
         Audit and legal expenses                54,467      71,182      62,613
         Data processing                        121,503      92,430      80,877
         Other (includes no items in excess
           of 1% of total revenue)              390,451     286,274     251,283
                                               --------    --------    --------
                                               $656,061    $515,582    $531,072
                                               ========    ========    ========

<PAGE>


Corporate Information

Board of Directors

John O. Gregory
Chairman of the Board
President, Gregory Construction Company

Danny G. Snow
Vice Chairman of the Board
President, Ice Components, Inc.

Harry J. Parrish II
Secretary of the Board
President, MIFCO

John T. DeBell
President, Bengtson, DeBell and Elkin, Ltd.

Michael C. Martin
Dealer/Operator, Dudley Martin Chevrolet

Danny R. May
President and CEO, Security Bank Corporation

Richard J. Ratcliffe
President, R. Jackson Ratcliffe, Inc.

Kenneth B. Swenson
President, Prince William Hospital

C. Dianne Kirkman
Assistant Secretary of the Board





Officers

John O. Gregory
Chairman of the Board

Danny R. May
President and CEO

L. Thomas Campbell
Executive Vice President/Senior Credit Officer

Carol S. Brandon
Vice President/Cashier and CFO

Edna T. Brannan
Vice President/Commercial Loans

Deborah C. Kahley
Vice President/Marketing and Branch Administration

Peggy J. Clark
Assistant Vice President/Operations

Shirley J. Holt
Assistant Vice President/Loan Administration

<PAGE>

Transfer Agency
American Stock Transfer & Trust Company
40 Wall Street
New York, NY 10005

Legal Counsel
Russell Norwood Wells

Independent Auditors
Yount, Hyde & Barbour, P.C.
Winchester, VA

Security Bank Corporation
8780 Centreville Road
Manassas, VA 20110-5267
703-361-1986

7801 Sudley Road
Manassas, VA 20109-2805
703-335-8768

Investment Information

Market Price Per Share:              1997
High                               $13.875
Low                                $  9.00
Last                               $12.875
Book Value Per Share
(as of December 31, 1997):         $  8.14

Annual Meeting

The Annual Meeting of the Shareholders will be held May 20, 1998 at 7:30 P.M. at
the office of Security Bank Corporation at 8780 Centreville Road, Manassas,
Virginia.

Exchange Listing

Security Bank Corporation common stock is traded on the NASDAQ SmallCap Market
under the symbol SecurityM.

Form 10-KSB

Copies of the 1997 annual report filed with the Board of Governors of the
Federal Reserve System on Form 10-KSB and supplemental quarterly information
may be obtained by contacting: C. Dianne Kirkman, Security Bank Corporation,
8780 Centreville Road, Manassas, VA 20110.









<PAGE>


                                                                      APPENDIX V






                            SECURITY BANK CORPORATION
                                   FORM 10-QSB
                    FOR THE QUARTER ENDED SEPTEMBER 30, 1998








<PAGE>


                BOARD OF GOVERNORS OF THE FEDERAL RESERVE SYSTEM

                             Washington, D. C. 20551

- --------------------------------------------------------------------------------

                                   Form 10-QSB

[X] Quarterly Report Under Section 13 or 15(d) of the Securities Exchange Act of
1934
             For the quarterly period ended September 30, 1998

[ ] Transition Report Under Section 13 or 15(d) of the Exchange Act

- --------------------------------------------------------------------------------


                            SECURITY BANK CORPORATION
             (Exact name of registrant as specified in its charter)

      Virginia                                             54-1337782
(State or other jurisdiction of                         (I.R.S. employer
incorporation or organization)                          identification no.)

8780 Centreville Road, Manassas, Virginia                   20110
(Address of principal executive offices)                  (Zip code)

(Registrant's telephone number, including area code)    (703) 361-1986


Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the preceding 12 months (or for such shorter period that the registrant was
required to file such reports), and (2) has been subject to such filing
requirements for the past 90 days.

                  Yes      X                    No ____

Indicate the number of shares outstanding of each of the issuer's classes of
common stock as of the latest practicable date:

Class Common Stock   Number of shares  961,378  Outstanding at November 10, 1998



<PAGE>





                            SECURITY BANK CORPORATION

                                      Index
<TABLE>
<CAPTION>
<S>                                                                             <C>

Part I.   Financial information

Item 1.     Financial Statements (unaudited)                                       3

            Balance Sheets - September 30, 1998 and December 31, 1997              3

            Statements of Income - Nine months ended September 30, 1998 and
            1997                                                                   4

            Statements of Shareholders' Equity - Nine months ended September
            30, 1998 and 1997                                                      5

            Statements of Cash Flows - Nine months ended September 30, 1998 and
              1997                                                                 6

            Notes to Financial Statements - September 30, 1998                     7

Item 2.     Management's Discussion and Analysis of Financial Results of
              Operations                                                          11

Part II.  Other information

Item 6      Exhibits and reports on Form 8-K                                      14

Signatures                                                                        16
</TABLE>



<PAGE>


                                SECURITY BANK CORPORATION
                                      BALANCE SHEETS
                                           as of
                         September 30, 1998 and December 31, 1997


<TABLE>
<CAPTION>


                                    Unaudited
                                                            9/30/98              12/31/97
                                                        ---------------       -------------
<S>                                                     <C>                    <C>
ASSETS

Cash and due from banks                                     $ 2,130,552         $ 1,856,746
Federal funds sold                                            4,417,000           1,045,000
Securities (fair value: 1998, $16,856,305                    16,799,467          17,801,393
   and 1997, $17,844,791)
Loans, net                                                   33,243,419          31,933,777
Other real estate owned                                         712,594             662,594
Bank premises & equipment, net                                2,232,884           2,344,878
Accrued interest receivable                                     442,324             453,909
Other assets                                                    457,742             259,582
                                                         ---------------       -------------

     TOTAL ASSETS                                          $ 60,435,982        $ 56,357,879
                                                         ===============       =============





          LIABILITIES AND SHAREHOLDERS' EQUITY

LIABILITIES

Deposits:
  Noninterest bearing                                      $ 14,478,780        $ 12,212,673
  Interest bearing                                           36,895,873          35,461,009
                                                         ---------------       -------------
     Total Deposits                                          51,374,653          47,673,682
                                                         ---------------       -------------

Securities sold under agreement to repurchase                   374,262             430,786
Accrued interest payable                                        174,475             128,029
Other liabilities and accrued expenses                          396,499             325,672
                                                         ---------------       -------------
      Total Liabilities                                      52,319,889          48,558,169
                                                         ---------------       -------------

SHAREHOLDERS' EQUITY

Capital stock, $5.00 par value
  authorized 3,000,000 shares,
  issued 961,198 in 1998 and 958,267 shares in 1997           4,805,990           4,791,335
Surplus                                                       2,687,068           2,678,730
Retained earnings                                               576,612             320,221
Accumulated other comprehensive income                           46,423               9,424
                                                         ---------------       -------------
      Total Shareholders' Equity                              8,116,093           7,799,710
                                                         ---------------       -------------
     TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY            $ 60,435,982        $ 56,357,879
                                                         ===============       =============
</TABLE>


<PAGE>



                            SECURITY BANK CORPORATION
                              STATEMENTS OF INCOME
                                   (Unaudited)
<TABLE>
<CAPTION>


                                        Nine Months Ended                  Quarter Ended
                                          9/30/98          9/30/97           9/30/98          9/30/97
                                        ------------------------------     -----------------------------
<S>                                      <C>              <C>                 <C>             <C>
INTEREST INCOME
   Interest and fees on loans            $ 2,305,513      $ 1,946,461        $ 776,843        $ 674,804
   Interest on federal funds sold            136,870          121,488           70,957           47,740
   Interest and dividends on investment
    securities:
      Taxable interest income                281,078          226,007           77,937           78,504
      Tax exempt interest income               7,741                -            4,159                -
   Interest and dividends on securities
    available for sale:
     Taxable interest income                 400,880          432,500          128,618          141,454
     Dividends                                10,141            9,915            3,381            3,367
                                        -------------    -------------     ------------     ------------
      Total interest income                3,142,223        2,736,371        1,061,895          945,869
                                        -------------    -------------     ------------     ------------

INTEREST EXPENSE
   Interest on deposits                    1,221,305        1,025,925          413,435          355,122
   Interest on short-term borrowings          19,870           27,480            5,993           10,091
                                        -------------    -------------     ------------     ------------


       Net interest income                 1,901,048        1,682,966          642,467          580,656
                                        -------------    -------------     ------------     ------------

Provision for loan losses                    205,000           27,000           45,000           21,000
                                        -------------    -------------     ------------     ------------

       Net Interest Income after provision
         for loan losses                   1,696,048        1,655,966          597,467          559,656
                                        -------------    -------------     ------------     ------------

OTHER INCOME
   Fees on deposit accounts                  254,644          266,502           81,196           85,673
   Other service charges and fees             33,414           19,600           14,647            7,860
   Securities gains, net                      10,663                -                -                -
   Other operating income                     11,766            6,286            8,561            4,508
                                        -------------    -------------     ------------     ------------
                                             310,487          292,388          104,404           98,041
                                        -------------    -------------     ------------     ------------
OTHER EXPENSE
   Salaries and employee benefits            789,270          820,430          250,590          271,932
   Occupancy expense                         163,224          136,853           56,632           53,075
   Furniture and equipment expense           134,350          111,638           48,459           49,207
   Other operating expenses                  556,618          501,871          185,982          153,366
                                        -------------    -------------     ------------     ------------
                                           1,643,462        1,570,792          541,663          527,580
                                        -------------    -------------     ------------     ------------

       Income before income taxes            363,073          377,562          160,208          130,117
Provision for income taxes                   106,682                -           48,512                -
                                        -------------    -------------     ------------     ------------

       NET INCOME                          $ 256,391        $ 377,562        $ 111,696        $ 130,117
                                        =============    =============     ============     ============

PER COMMON SHARE
  Basic                                       $ 0.27           $ 0.39           $ 0.12           $ 0.14
                                         =============    =============     ============     ============
  Assuming dilution                           $ 0.26           $ 0.39           $ 0.11           $ 0.13
                                         =============    =============     ============     ============

</TABLE>


<PAGE>




                            SECURITY BANK CORPORATION
                  STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY
       For the Nine Months Ended September 30, 1998 and 1997 (Unaudited)






<TABLE>
<CAPTION>
                                                                                                              Accumulated
                                                                                               Retained           Other
                                                             Comprehensive     Earnings     Comprehensive         Common
                                             Total           Income(Loss)      (Deficit)     Income(Loss)         Stock      Surplus
                                           --------------- ---------------- -------------- ----------------- -----------  ----------
<S>                                          <C>             <C>            <C>              <C>              <C>          <C>
Balance, January 1, 1997                      $ 7,250,771    $        --    $ (205,980)          $ (13,314)  $ 4,791,335  $2,678,730
Comprehensive Income(loss):
  Net income                                    $ 377,562        377,562       377,562
  Other comprehensive income(loss)
    Unrealized gains(losses) on securities
      available for sale                           28,920         28,920                            28,920
                                           ---------------  -------------

  Total comprehensive income(loss)                             $ 406,482
                                                            ============= --------------  ------------------------------------------

Balance, September 30, 1997                   $ 7,657,253                   $ 171,582            $ 15,606   $ 4,791,335  $ 2,678,730
                                             ============                   ==========           =========  ============ ===========




</TABLE>



<TABLE>
<CAPTION>

                                                                                   Accumulated
                                                                        Retained      Other
                                                        Comprehensive   Earnings  Comprehensive    Common
                                           Total         Income(Loss)  (Deficit)  Income(Loss)      Stock         Surplus
                                           ------------- -----------  ----------  ---------------  ---------  ------------
<S>                                        <C>            <C>             <C>          <C>             <C>          <C>
Balance, January 1, 1998                    $ 7,799,710    $        --  $ 320,221    $ 9,424       $ 4,791,335   $ 2,678,730
Comprehensive Income(loss):
  Net income                                    256,391        256,391    256,391
                                                          -------------
  Other comprehensive income, net of tax
    Unrealized gains(losses) on securities
      available for sale                                        47,662
    Less:  reclassification adjustment                         (10,663)
  Other comprehensive income, net of tax         36,999         36,999                36,999
                                                           ------------

  Total comprehensive income                                 $ 293,390
                                                          =============

Issuance of common stock -
  exercise of options (1,750) shares             15,907                                                  8,750         7,157

Issuance of common stock-
  exercise of warrants (1,181 shares)             7,086                                                  5,905         1,181
                                                  ------
                                                                       ----------------------  ------------------------------

Balance, September 30, 1998                 $ 8,116,093                 $ 576,612   $ 46,423       $ 4,805,990   $ 2,687,068
                                            ============                ==========  =========      ============  ===========
</TABLE>



<PAGE>

                                    SECURITY BANK CORPORATION
                                     STATEMENTS OF CASH FLOWS
                                           (Unaudited)
                      For the Nine Months ended September 30, 1998 and 1997

<TABLE>
<CAPTION>
                                                                        1998                    1997
                                                                   -----------------      ------------------
<S>                                                                   <C>                      <C>
Cash Flows from Operating Activities
Net income                                                                $ 256,391               $ 377,562
Adjustments to reconcile net income to net cash
  provided by operating activities:
    Provision for loan losses                                               205,000                  27,000
    Deferred income taxes(credits)                                          (52,371)                      -
    Depreciation                                                            145,448                 119,565
    Net premium amortization(discount accretion) on securites                10,744                   4,827
    (Gain) on sale of securities                                            (10,663)                      -
    (Gain)loss on disposition of fixed assets                                     -                   3,188
Changes in assets and liabilities:
    (Increase)decrease in accrued interest receivable                        11,585                  (8,244)
    (Increase)decrease in other assets                                     (131,357)                (67,536)
    Increase(decrease) in accrued interest payable                           46,446                  22,484
    Increase(decrease) in other liabilities                                 123,060                   7,512
                                                                   -----------------      ------------------
        Net cash provided by (used in) operating activities                 604,283                 486,358
                                                                   -----------------      ------------------

Cash Flows from Investing Activities
Investments
  Proceeds from maturities & principal payments of securities
    held to maturity                                                      2,882,037               2,164,972
  Proceeds from maturities of securities available for sale               7,958,900               4,549,363
  Proceeds from sale of securities available for sale                       860,078                       -
  Purchases of securities held to maturity                                 (313,379)             (2,085,027)
  Purchases of securities available for sale                            (10,329,732)             (6,601,725)
Net (increase) decrease in loans                                         (1,659,735)             (1,569,275)
Purchase of other real estate owned                                         (50,000)                      -
Sale of other real estate owned                                              60,000                       -
Purchase of premises and equipment                                          (34,086)               (928,503)
                                                                   -----------------      ------------------
        Net cash provided by(used in) investing activities                 (625,917)             (4,470,195)
                                                                   -----------------      ------------------

Cash Flows from Financing Activities
  Net increase(decrease) in DDA, NOW, and savings accounts                3,019,109               1,250,176
  Net increase in certificates of deposit                                   681,862               2,908,245
  Increase(decrease) in repurchase agreements                               (56,524)                532,577
  Proceeds from sale of common stock                                         22,993                       -
                                                                   -----------------      ------------------
        Net cash provided by (used in) financing activities               3,667,440               4,690,998
                                                                    -----------------      ------------------

       Increase (decrease) in cash and cash equivalents                   3,645,806                 707,161

Cash and Cash Equivalents
  Beginning                                                               2,901,746               6,407,955
                                                                   -----------------      ------------------
  Ending                                                                $ 6,547,552             $ 7,115,116
                                                                   =================      ==================

Supplemental Disclosures of Cash Flow Information,
  Cash payments for interest                                            $ 1,194,729             $ 1,030,921
                                                                   =================      ==================

Supplemental Disclosure of Noncash Investing and Financing Activities:

  Unrealized gain(loss) on securities available for sale                   $ 56,059                $ 28,920
                                                                   =================      ==================
  Investments originated through deferred compensation agreements         $ 101,647                $ 29,141
                                                                   =================      ==================
  Other real estate acquired in settlement of loans                        $ 60,000                     $ -
                                                                   =================      ==================

</TABLE>



<PAGE>




                            SECURITY BANK CORPORATION

                          Notes to Financial Statements

1. The accompanying unaudited financial statements have been prepared in
   accordance with generally accepted accounting principals for interim
   financial information and with the instructions to Form 10-QSB and Article 10
   of Regulation S-X. Accordingly, they do not include all of the information
   and footnotes required by generally accepted accounting principles.

2. In the opinion of management, the accompanying unaudited financial statements
   contain all adjustments (consisting of only normal recurring accruals)
   necessary to present fairly the financial position as of September 30, 1998
   and December 31, 1997, and the result of operations and cash flows for the
   nine months ended September 30, 1998 and 1997. The statements should be read
   in conjunction with the Notes to Financial Statements included in the bank's
   Annual Report for the year ended December 31, 1997.

3. The results of operations for the nine month period ended September 30, 1998
   and 1997, are not necessarily indicative of the results to be expected for
   the full year.

4. Securities held to maturity and available for sale as of September 30, 1998,
   and December 31, 1997, are:

<TABLE>
<CAPTION>
                                                                     December 31,
                                         September 30, 1998                  1997
   Held to Maturity                          Amortized Cost        Amortized Cost
                                         -------------------     -----------------
<S>                                       <C>                     <C>

   U. S. treasury securities                    $        0             $  200,104
   U. S. governmental corporations and
     agencies                                    3,227,084              5,673,724
   Mortgage-backed securities                      158,642                190,391
   Obligation of states and political
     subdivisions                                  422,793                110,147
   Corporate securities                            545,221                743,670
                                               ------------           ------------

                                                $4,353,740             $6,918,036
                                               ============           ============



                                                Fair Value             Fair Value
                                               ------------           ------------

   U. S. treasury securities                    $        0             $  200,375
   U. S. governmental corporations and
     agencies                                    3,275,520              5,716,625
   Mortgage-backed securities                      161,731                192,402
   Obligation of states and political
     subdivisions                                  422,133                110,147
   Corporate securities                            551,194                741,885
                                               ------------           ------------
                                                $4,410,578             $6,961,434
                                               ============           ============
</TABLE>


<PAGE>




<TABLE>
<CAPTION>


                                           September 30, 1998      December 31, 1997
   Available for Sale                         Amortized Cost        Amortized Cost
                                         --------------------        -------------

<S>                                               <C>                  <C>
   U. S. treasury securities                     $   902,353          $   906,029
   U. S. governmental corporations and
     agencies                                      9,467,322            8,768,488
   Mortgage-backed securities                      1,290,952              165,921
   Corporate securities                              249,462              748,540
   Other securities                                  465,300              280,100
                                         --------------------        -------------

                                                 $12,375,389          $10,869,078
                                         ====================        =============



                                                  Fair Value           Fair Value
                                         --------------------        -------------

   U. S. treasury securities                      $  904,221           $  907,781
   U. S. governmental corporations and
     agencies                                      9,527,765            8,783,303
   Mortgage-backed securities                      1,298,569              162,653
   Corporate securities                              249,872              749,520
   Other securities                                  465,300              280,100
                                         --------------------        -------------

                                                 $12,445,727          $10,883,357
                                         ====================        =============
</TABLE>


5. Net loans at September 30, 1998, and December 31, 1997, are summarized as
   follows:

<TABLE>
<CAPTION>

                                           September 30, 1998       December  31, 1997
                                         ---------------------      ------------------

<S>                                     <C>                             <C>
   Loans secured by real estate:
     Construction & land development              $ 5,433,900          $ 3,256,285
     Secured by 1-4 family residential
       properties                                   3,898,942            4,179,316
     Secured by nonfarm nonresidential
   properties                                      15,774,440           17,148,178
   Commercial & industrial loans                    5,712,706            5,062,361
   Consumer loans                                   2,803,568            2,760,625
   Other                                               13,374               26,568
                                         ---------------------        ------------

        Gross loans                                33,636,930           32,433,333

   Deduct:
     Unearned discount                                 57,691               74,736
     Allowance for loan losses                        335,820              424,820
                                         ---------------------         ------------
                                                      393,511              499,556
                                         ---------------------         ------------
        Net loans                                 $33,243,419          $31,933,777
                                         =====================         ============

</TABLE>


<PAGE>




6.    Reserve for Loan Losses

<TABLE>
<CAPTION>
                                          September 30, 1998          December 31, 1997
                                         --------------------      ---------------------

<S>                                                 <C>                        <C>
   Balance, beginning                               $424,820                   $408,688
   Provision charged to operating
   expense                                           205,000                     48,000
   Loan recoveries                                    21,846                     46,808
   Loan charge-offs                                (315,846)                   (78,676)
                                         --------------------      ---------------------

   Balance, ending                                  $335,820                   $424,820
                                         ====================      =====================

</TABLE>


7.    Earnings per Share

<TABLE>
<CAPTION>


                                     Third Quarter 1998                           Third Quarter 1997

                             Income           Shares      Per Share      Income        Shares         Per Share
                           (Numerator)     (Denominator)   Amount      (Numerator)  (Denominator)       Amount
                          ------------------------------------------   ------------------------------------------
<S>                             <C>             <C>           <C>          <C>          <C>                <C>
   Basic EPS
   Income available to
     common stockholders        $111,696        960,500       $ .12        $130,117     958,267            $ .14
                          ===============               ============   =============            =================



   Effect of Dilutive
   Securities:
     Warrants                                     9,576                                   7,606
     Employee options                             7,297                                   2,481
     Director options                            16,052                                   7,748
                                         ---------------                            ------------

   Diluted EPS
   Income available to
     common stockholders
   +
     assumed conversions        $111,696        993,425        $.11        $130,117     976,102             $.13
                          ==========================================   ==========================================
</TABLE>



<PAGE>



<TABLE>
<CAPTION>
                               Third Quarter 1998 Year to Date              Third Quarter 1997 Year to Date

                               Income       Shares       Per Share       Income        Shares         Per Share
                            (Numerator)  (Denominator)     Amount      (Numerator)  (Denominator)       Amount
                          ------------------------------------------   ------------------------------------------
<S>                             <C>             <C>           <C>          <C>          <C>                <C>
   Basic EPS
   Income available to
     common stockholders        $256,391        959,346       $ .27        $377,562     958,267            $ .39
                          ===============               ============   =============            =================


   Effect of Dilutive
   Securities:
     Warrants                                     9,895                                   7,448
     Employee options                             8,489                                   1,008
     Director options                            16,658                                   3,486
                                         ---------------                            ------------

   Diluted EPS
   Income available to
     common stockholders
   +
     assumed conversions        $256,391        994,388       $ .26        $377,562     970,209            $ .39
                          ==========================================   ==========================================
</TABLE>



8.    New Accounting Pronouncements

   Effective January 1, 1998, the Bank adopted Statement of Financial Accounting
   Standards No. 130, "Reporting Comprehensive Income." This statement
   establishes standards for reporting and display of comprehensive income and
   its components (revenues, expenses, gains and losses) in a full set of
   general purpose financial statements. Financial statements for prior periods
   have been restated as required.

   In June 1998, the Financial Accounting Standards Board issued Statement of
   Financial Accounting Standards No. 133, "Accounting for Derivative
   Instruments and Hedging Activities." This statement requires companies to
   record derivatives on the balance sheet as assets and liabilities, measured
   at fair value. Gains or losses resulting from changes in the values of those
   derivatives would be accounted for depending on the use of the derivative and
   whether it qualifies for hedge accounting. This statement is effective for
   fiscal years beginning after June 15, 1999, with earlier adoption encouraged.
   The Bank will adopt this accounting standard as required by January 1, 2000.
   This statement is not expected to have a material impact on the Bank's
   financial statements.

   In March 1998, the American Institute of Certified Public Accountants (AICPA)
   issued Statement of Position ("SOP") 98-1, "Accounting for the Costs of
   Computer Software Developed or Obtained for Internal Use." This SOP provides
   guidance on accounting for the costs of computer software developed or
   obtained for internal use. This SOP requires that entities capitalize certain
   internal-use software costs once certain criteria are met. This statement is
   not expected to have a material impact on the Bank's financial statements.


<PAGE>

   In April 1998, the AICPA issued SOP 98-5, "Reporting on the Costs of Start-Up
   Activities," which requires the costs of start-up activities and organization
   costs to be expensed as incurred. This statement is effective for the fiscal
   year 1999 financial statements. This statement is not expected to have a
   material impact on the Bank's financial statements.


   Item 2.  MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL
               CONDITION AND RESULTS OF OPERATIONS

   In addition to historical information, the following discussion contains
   forward-looking statements regarding management's earnings expectations and
   the anticipated effect of the Bank's branching efforts. The actual results of
   Security Bank Corporation may differ from those anticipated by management as
   a result of several factors including, but not limited to, imposition of
   federal taxes due to exhaustion of the tax loss carryforward, expenses
   associated with the branch, changes in interest rates, increased competition,
   deterioration in the quality of loans, and other factors that may effect a
   bank's performance.

   FINANCIAL SUMMARY

   Net income for the nine months ended September 30, 1998, decreased 32.1% to
   $256,391 or $.27 per share (basic) and $.26 (assuming dilution) compared to
   $377,562 or $.39 (basic and assuming dilution) for the first nine months of
   1997. Annualized returns on average assets and average equity for the period
   ended September 30, 1998, were .59% and 4.3%, respectively, compared to 1.0%
   and 6.8% for the same period in 1997. The greatest impact on the net income
   for 1998 was the $205,000 addition to the loan loss reserve while in 1997
   there was a provision of $27,000. In addition, 1998 saw the provision of
   $106,682 for federal income taxes while 1997 was covered by a net operating
   loss carryforward. The annualized return on equity in 1998 and 1997 was
   affected by the large amount of capital in the Bank. The decreased return on
   average assets was caused by decreased earnings and an increase in average
   assets in 1998 to $57,638,500 from $50,029,712 in the first nine months of
   1997.

   The total assets of the Bank increased to $60,435,982 at September 30, 1998,
   compared to $56,357,879 at December 31, 1997, representing an increase of
   $4,078,103 or 7.2%. Gross loans outstanding improved 3.7% to $33,636,930 at
   September 30, 1998, from $32,433,333 at December 31, 1997. Total deposits
   increased $3,700,971, or 7.8%, to $51,374,653 at September 30, 1998, compared
   to $47,673,682 at December 31, 1997.

   Shareholders' equity at September 30, 1998, totaled $8,116,093 compared to
   $7,799,710 at December 31, 1997. Book value per share of common stock on
   September 30, 1998, was $8.44 per share compared to $8.14 at December 31,
   1997. The book value increased due to earnings and the increase in
   accumulated other comprehensive income.


<PAGE>

   Net Interest Income

   Net interest income is the Bank's primary source of earnings and represents
   the difference between interest and fees earned on earning assets and the
   interest expense paid on deposits and other interest bearing liabilities. Net
   interest income totaled $3,142,223 for the first nine months of 1998 compared
   to $2,736,371 for the same period in 1997. The improvement in net interest
   income was attributable to a higher volume of earning assets.

   Noninterest Income

   Service charges on deposit accounts for the nine months of 1998 totaled
   $254,644 compared to $266,502 for the same period in 1997, a decrease of
   4.4%. The Bank is closing accounts of customers who frequently overdraw more
   quickly to reduce the risk of loss to the Bank. The Bank currently derives
   most of its other noninterest income from service charges and return check
   charges on checking, money market and NOW accounts.

   Noninterest Expenses

   In support of the Bank's continued growth, total noninterest expenses
   consisting of employee related costs, occupancy and other overhead totaled
   $1,643,462 for the first nine months of 1998, compared to $1,570,792 for the
   same period in 1997, representing an increase of $72,670 or 4.6%. The
   decrease in salary and employee benefits is attributable to a reduction in
   staff at the Sudley Road office offset by an accrual of $30,000 for the
   severance package of the President and CEO. The increased costs in 1998 in
   both occupancy and furniture and equipment expense are associated with the
   opening of the Sudley Road office as well as the installation of a local area
   network and wide area network in 1997. Costs for the above are included for a
   full nine months in 1998 while costs for 1997 began in May. In addition, in
   1998, the Bank has experienced increased equipment costs to test the local
   area networks for compatibility with the Year 2000.

   Allowance for Loan Losses

   The allowance for loan losses as of September 30, 1998, was $335,820. This
   decrease is primarily the result of charge offs taken on long-term workouts
   where all efforts to effect collection have been exhausted. The current ratio
   of the allowance for loan losses to gross loans is 1.0%. In the first nine
   months of 1998, a provision of $205,000 was taken as compared to a provision
   for loan losses of $27,000 taken in 1997. The lower provision in 1997 was due
   to a recovery on a previously charged-off loan. Management believes that the
   allowance for loan losses is adequate to cover credit losses inherent in the
   loan portfolio at September 30, 1998. Although loans classified as loss,
   doubtful, substandard or special mention are not expected to have a material
   impact beyond what has been reserved, it is management's intention to
   increase the reserve by $15,000 per month for the remainder of 1998.


<PAGE>

   Capital Resources

   Shareholders' equity on September 30, 1998, was $8,116,093 compared to
   $7,799,710 on December 31, 1997. Factors contributing to the change in
   shareholders' equity were the retention of net income, the conversion of
   1,181 warrants into common stock, the conversion of 1,750 options into common
   stock, and the increase in accumulated other comprehensive income due to the
   change in the value of securities available for sale.

   At September 30, 1998, the Bank's Tier 1 and total risk-based capital ratios
   were 19.72% and 20.54%, respectively, compared to 19.63% and 20.70% at
   December 31, 1997. The Bank's leverage ratio was 13.36% at September 30,
   1998, compared to a ratio of 13.91% at December 31, 1997. The Bank's capital
   structure places it above the Federal Reserve Board's guidelines, as the Bank
   maintains a strong capital base to take advantage of business opportunities
   while ensuring that it has the resources to protect against the risks
   inherent in its business.

   Other Matters - Year 2000

   The Bank has established a committee to address and evaluate problems that
   may be encountered with respect to the Year 2000. By the end of 1997 the Bank
   completed a thorough assessment of each of our computer related vendors,
   service providers, and equipment vendors. The systems deemed to be critical
   to the continued, uninterrupted operation of the bank and the service the
   Bank provides to its customers were renovated and thoroughly tested by both
   the vendor and the bank by September 30, 1998. The renovated programs have
   been incorporated into the daily operations of the data center.

   The Bank has an on-going project of contacting commercial loan customers with
   a survey form that both informs the customers of some of the issues and tries
   to determine the readiness of our loan customers when it comes to the Year
   2000. These results will be incorporated into loan policy and decisions as
   necessary to reduce the risk to the Bank of future loan problems resulting
   from the failure of some of our customers to address the issue.

   Year to date in 1998 the Bank has expensed approximately $13,000 for the
   testing of computer systems. It has been determined that the Bank will not
   need to replace any equipment in order to meet Year 2000 requirements. It is
   the opinion of the Bank that the cost of addressing Year 2000 problems will
   not represent a material event or uncertainty that would reasonably be
   expected to adversely affect future financial results.

   The Bank is currently working to complete contingency plans which would be
   implemented in the event a problem occurs. This project is expected to be
   complete by December 31, 1998.


<PAGE>

   Other Matters

   During the third quarter, the Bank was accepted into membership with the
   Federal Home Loan Bank. This action increases the ability of the Bank to
   borrow funds as needed.

   Part II.   Other information

   Item 1.  Legal proceedings.

            None

   Item 2.  Change in securities.

            None

   Item 3.  Defaults upon senior securities.

            None

   Item 4.  Submission of matters to a vote of security holders.

            None

   Item 5.  Other information.

   Item 6.  Exhibits and reports on Form 8-K.

(a)   Exhibits

                  Exhibit 2   Not applicable

                  Exhibit 3   (I) Articles of Incorporation incorporated by
                              reference to Exhibit 3 to the Bank's Annual Report
                              on Form 10-KSB for the year ended December 31,
                              1996

                              (II) Bylaws, Security Bank Corporation
                              incorporated by reference to Exhibit 3 (II) to the
                              Bank's Quarterly Report on Form 10-QSB for the
                              quarter ended June 30, 1998

                  Exhibit 4   Not applicable

<PAGE>

                  Exhibit 10 a. Lease Agreement dated July 11, 1996, between
                                Security Bank Corporation and Twelve Knotts
                                Limited Partnership, Incorporated by reference
                                to Exhibit 10 to the Bank's Quarterly Report on
                                Form 10-QSB for the quarter ended September 30,
                                1996

                             b. Employment Agreement between Security Bank
                                Corporation and Danny R. May dated May 1, 1998
                                incorporated by reference to Exhibit 10(b) to
                                the Bank's Quarterly Report on Form 10-QSB for
                                the quarter ended June 30, 1998

                  Exhibit 11  Not applicable

                  Exhibit 15  Not applicable

                  Exhibit 18  Not applicable

                  Exhibit 19  Not applicable

                  Exhibit 22  Not applicable

                  Exhibit 23  Not applicable

                  Exhibit 24  Not applicable

                  Exhibit 27  Not applicable

                  Exhibit 99  Not applicable

(b)   Reports on Form 8-K

                  None



<PAGE>




   Signatures

   Pursuant to the requirements of the Securities Exchange Act of 1934, the
   registrant has duly caused this report to be signed on its behalf by the
   undersigned thereunto duly authorized.

                                    SECURITY BANK CORPORATION



   DATE:  November 10, 1998               Danny R. May
                                          Principal Executive Officer



   DATE:  November 10, 1998               Carol S. Brandon
                                          Principal Financial Officer




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