<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
ACCOMPANYING FINANCIAL STATEMENTS AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE
TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 9-MOS
<FISCAL-YEAR-END> SEP-30-2000
<PERIOD-START> OCT-01-1999
<PERIOD-END> JUN-30-2000
<CASH> 28,261
<SECURITIES> 62,079
<RECEIVABLES> 5,115
<ALLOWANCES> (10)
<INVENTORY> 0
<CURRENT-ASSETS> 101,218
<PP&E> 17,695
<DEPRECIATION> (13,262)
<TOTAL-ASSETS> 116,933
<CURRENT-LIABILITIES> 28,182
<BONDS> 0
0
0
<COMMON> 97
<OTHER-SE> 79,703
<TOTAL-LIABILITY-AND-EQUITY> 116,933
<SALES> 45,403
<TOTAL-REVENUES> 45,403
<CGS> 9,457
<TOTAL-COSTS> 9,457
<OTHER-EXPENSES> 193,705
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 0
<INCOME-PRETAX> (154,299)
<INCOME-TAX> 5,453
<INCOME-CONTINUING> (159,752)
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> (159,752)
<EPS-BASIC> (1.66)
<EPS-DILUTED> (1.66)
</TABLE>