content: <HTML><HEAD>
  <TITLE>Prepared by R.R. Donnelley Financial -- Form 8-K</TITLE>
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   <HR SIZE="4" NOSHADE COLOR="#000000" ALIGN="left"><DIV><FONT SIZE="1">&nbsp;</FONT></DIV> <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="5" COLOR="#000000"><B>SECURITIES AND EXCHANGE COMMISSION
  </B></FONT></DIV> <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="3" COLOR="#000000"><B>Washington, D.C. 20549 </B></FONT></DIV> <DIV><FONT SIZE="1">&nbsp;</FONT></DIV> <HR NOSHADE WIDTH="17%" COLOR="#000000"><DIV><FONT
  SIZE="1">&nbsp;</FONT></DIV> <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="5" COLOR="#000000"><B>FORM 8-K </B></FONT></DIV> <DIV><FONT SIZE="1">&nbsp;</FONT></DIV> <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="2"
  COLOR="#000000"><B>CURRENT REPORT </B></FONT></DIV> <DIV><FONT SIZE="1">&nbsp;</FONT></DIV> <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"><B>Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
  </B></FONT></DIV> <DIV><FONT SIZE="1">&nbsp;</FONT></DIV> <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"><B>Date of Report:&nbsp;&nbsp;<U>&nbsp;&nbsp;&nbsp;&nbsp;August 12, 2002&nbsp;&nbsp;</U> </B></FONT></DIV> <DIV
  ALIGN="center"><FONT FACE="Times New Roman" SIZE="1" COLOR="#000000"><B>(Date of earliest event reported) </B></FONT></DIV> <DIV><FONT SIZE="1">&nbsp;</FONT></DIV> <HR NOSHADE WIDTH="17%" COLOR="#000000"><DIV><FONT SIZE="1">&nbsp;</FONT></DIV> <DIV
  ALIGN="center"><FONT FACE="Times New Roman" SIZE="6" COLOR="#000000"><B>CYBERSOURCE CORPORATION </B></FONT></DIV> <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="1" COLOR="#000000"><B>(Exact name of Registrant as specified in its charter)
  </B></FONT></DIV> <DIV><FONT SIZE="1">&nbsp;</FONT></DIV> <DIV ALIGN="center">
  <TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0">
  
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  <TD VALIGN="top" ALIGN="center" WIDTH="31%"> <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="2"
  COLOR="#000000"><B><U>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;DELAWARE&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</U></B></FONT></DIV> </TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="top" ALIGN="center" WIDTH="31%"> <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="2"
  COLOR="#000000"><B><U>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;000-26477&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</U></B></FONT></DIV> </TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="top" ALIGN="center" WIDTH="31%"> <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="2"
  COLOR="#000000"><B><U>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;77-0472961&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</U></B></FONT></DIV> </TD> </TR>
  <TR>
  <TD VALIGN="top" ALIGN="center" WIDTH="31%"> <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="1" COLOR="#000000"><B>(State or other jurisdiction</B></FONT></DIV> <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="1" COLOR="#000000"><B>of
  incorporation)</B></FONT></DIV> </TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="top" ALIGN="center" WIDTH="31%"> <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="1" COLOR="#000000"><B>(Commission</B></FONT></DIV> <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="1" COLOR="#000000"><B>file
  number)</B></FONT></DIV> </TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="top" ALIGN="center" WIDTH="31%"> <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="1" COLOR="#000000"><B>(I.R.S. employer</B></FONT></DIV> <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="1" COLOR="#000000"><B>identification
  no.)</B></FONT></DIV> </TD> </TR>
   </TABLE> </DIV> <DIV><FONT SIZE="1">&nbsp;</FONT></DIV> <DIV ALIGN="center">
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  <TD VALIGN="bottom" ALIGN="center" WIDTH="48%"> <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"><B><U>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1295 Charleston Road, Mountain View,
  California&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</U></B></FONT></DIV> </TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="bottom" ALIGN="center" WIDTH="48%"> <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="2"
  COLOR="#000000"><B><U>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;94043&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</U></B></FONT></DIV> </TD> </TR>
  <TR>
  <TD VALIGN="top" ALIGN="center" WIDTH="48%"> <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="1" COLOR="#000000"><B>(Address of principal executive offices)</B></FONT></DIV> </TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="top" ALIGN="center" WIDTH="48%"> <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="1" COLOR="#000000"><B>(Zip Code)</B></FONT></DIV> </TD> </TR>
   </TABLE> </DIV> <DIV><FONT SIZE="1">&nbsp;</FONT></DIV> <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"><B>Registrant&#146;s telephone number, including area
  code:&nbsp;&nbsp;<U>&nbsp;&nbsp;&nbsp;&nbsp;(650) 965-6000&nbsp;&nbsp;&nbsp;&nbsp;</U> </B></FONT></DIV> <DIV><FONT SIZE="1">&nbsp;</FONT></DIV> <HR SIZE="4" NOSHADE COLOR="#000000" ALIGN="left"><P></P>
  
  
  
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   <DIV><FONT SIZE="1">&nbsp;</FONT></DIV> <DIV><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"><B>Item 9.&nbsp;&nbsp;&nbsp;&nbsp;Regulation FD Disclosure. </B></FONT></DIV> <DIV><FONT
  SIZE="1">&nbsp;</FONT></DIV> <DIV STYLE="text-indent:4%"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">On August 12, 2002, each of the chief executive officer, William S. McKiernan, and the chief financial officer, Steven D. Pellizzer, of
  CyberSource Corporation, a Delaware corporation, executed a certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, which accompanied CyberSource&#146;s Form 10-Q filed with the
  Securities and Exchange Commission on August 12, 2002. The text of each of these certifications is set forth below. </FONT></DIV> <DIV><FONT SIZE="1">&nbsp;</FONT></DIV> <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="2"
  COLOR="#000000"><B>CyberSource Corporation </B></FONT></DIV> <DIV><FONT SIZE="1">&nbsp;</FONT></DIV> <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"><U>CERTIFICATION</U> </FONT></DIV> <DIV><FONT SIZE="1">&nbsp;</FONT></DIV>
  <DIV STYLE="text-indent:4%"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">In connection with the periodic report of CyberSource Corporation (the &#147;Company&#148;) on Form 10-Q for the period ended June 30, 2002 as filed with the
  Securities and Exchange Commission (the &#147;Report&#148;), I, William S. McKiernan, Chief Executive Officer of the Company, hereby certify as of the date hereof, solely for purposes of Title 18, Chapter 63, Section 1350 of the United States Code,
  that to the best of my knowledge: </FONT></DIV> <DIV><FONT SIZE="1">&nbsp;</FONT></DIV> <DIV STYLE="margin-left:4%; text-indent:4%"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">(1)&nbsp;&nbsp;the Report fully complies with the requirements
  of Section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934, and </FONT></DIV> <DIV><FONT SIZE="1">&nbsp;</FONT></DIV> <DIV STYLE="margin-left:4%; text-indent:4%"><FONT FACE="Times New Roman" SIZE="2"
  COLOR="#000000">(2)&nbsp;&nbsp;the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company at the dates and for the periods indicated. </FONT></DIV> <DIV><FONT
  SIZE="1">&nbsp;</FONT></DIV> <DIV STYLE="text-indent:4%"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">This Certification has not been, and shall not be deemed, &#147;filed&#148; with the Securities and Exchange Commission. </FONT></DIV>
  <DIV><FONT SIZE="1">&nbsp;</FONT></DIV> <DIV>
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  <TD> <FONT SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD COLSPAN="3"> <FONT SIZE="1">&nbsp;</FONT></TD> </TR>
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  <TD HEIGHT="16"> </TD> </TR>
  <TR>
  <TD VALIGN="top" WIDTH="3%"> <DIV><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">Date:</FONT></DIV> </TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="top" WIDTH="53%"> <DIV STYLE="margin-left:2%; text-indent:-2%"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">August 12, 2002</FONT></DIV> </TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD> <FONT SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="top" WIDTH="3%"> <DIV><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">By:</FONT></DIV> </TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="top" ALIGN="center" WIDTH="53%"> <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">/s/&nbsp;&nbsp;&nbsp;&nbsp;W<SMALL>ILLIAM</SMALL> S.
  M<SMALL>C</SMALL>K<SMALL>IERNAN&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</SMALL></FONT></DIV> <HR NOSHADE COLOR="#000000" ALIGN="left"></TD> </TR>
  <TR>
  <TD> <FONT SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD> <FONT SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD> <FONT SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD> <FONT SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="bottom" WIDTH="53%"> <DIV STYLE="margin-left:2%; text-indent:-2%"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">William S. McKiernan</FONT></DIV> <DIV><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">Chief Executive
  Officer</FONT></DIV> </TD> </TR>
   </TABLE> </DIV> <DIV><FONT SIZE="1">&nbsp;</FONT></DIV> <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"><B>CyberSource Corporation </B></FONT></DIV> <DIV><FONT
  SIZE="1">&nbsp;</FONT></DIV> <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"><U>CERTIFICATION</U> </FONT></DIV> <DIV><FONT SIZE="1">&nbsp;</FONT></DIV> <DIV STYLE="text-indent:4%"><FONT FACE="Times New Roman" SIZE="2"
  COLOR="#000000">In connection with the periodic report of CyberSource Corporation (the &#147;Company&#148;) on Form 10-Q for the period ended June 30, 2002 as filed with the Securities and Exchange Commission (the &#147;Report&#148;), I, Steven D.
  Pellizzer, Vice President of Finance of the Company, hereby certify as of the date hereof, solely for purposes of Title 18, Chapter 63, Section 1350 of the United States Code, that to the best of my knowledge: </FONT></DIV> <P></P>
  
  
  
  <p Style='page-break-before:always'>
  <HR  SIZE="3" COLOR="#CCEEFF" WIDTH="100%" ALIGN="CENTER">
  
   <DIV><FONT SIZE="1">&nbsp;</FONT></DIV> <DIV STYLE="margin-left:4%; text-indent:4%"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">(1)&nbsp;&nbsp;the Report fully complies with the requirements of
  Section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934, and </FONT></DIV> <DIV><FONT SIZE="1">&nbsp;</FONT></DIV> <DIV STYLE="margin-left:4%; text-indent:4%"><FONT FACE="Times New Roman" SIZE="2"
  COLOR="#000000">(2)&nbsp;&nbsp;the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company at the dates and for the periods indicated. </FONT></DIV> <DIV><FONT
  SIZE="1">&nbsp;</FONT></DIV> <DIV STYLE="text-indent:4%"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">This Certification has not been, and shall not be deemed, &#147;filed&#148; with the Securities and Exchange Commission. </FONT></DIV>
  <DIV><FONT SIZE="1">&nbsp;</FONT></DIV> <DIV>
  <TABLE CELLSPACING="0" CELLPADDING="0" WIDTH="100%" BORDER="0">
  
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  <TD COLSPAN="3"> <FONT SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD> <FONT SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD COLSPAN="3"> <FONT SIZE="1">&nbsp;</FONT></TD> </TR>
  <TR>
  <TD HEIGHT="16"> </TD> </TR>
  <TR>
  <TD VALIGN="top" COLSPAN="3" WIDTH="53%"> <DIV><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">Date:&nbsp;&nbsp;August 12, 2002</FONT></DIV> </TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD> <FONT SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="top" WIDTH="3%"> <DIV><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">By:</FONT></DIV> </TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="top" ALIGN="center" WIDTH="53%"> <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">/s/&nbsp;&nbsp;&nbsp;&nbsp;S<SMALL>TEVEN</SMALL> D.
  P<SMALL>ELLIZZER&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</SMALL></FONT></DIV> <HR NOSHADE COLOR="#000000" ALIGN="left"></TD> </TR>
  <TR>
  <TD> <FONT SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD> <FONT SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD> <FONT SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD> <FONT SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="bottom" WIDTH="53%"> <DIV STYLE="margin-left:2%; text-indent:-2%"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">Steven D. Pellizzer</FONT></DIV> <DIV><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">Vice President of
  Finance</FONT></DIV> </TD> </TR>
   </TABLE> </DIV> <DIV><FONT SIZE="1">&nbsp;</FONT></DIV> <DIV STYLE="text-indent:4%"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">The information in this Current Report on Form 8-K is furnished
  pursuant to Item 9 and shall not be deemed to be &#147;filed&#148; for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section. </FONT></DIV> <DIV><FONT
  SIZE="1">&nbsp;</FONT></DIV> <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"><B>SIGNATURES </B></FONT></DIV> <DIV><FONT SIZE="1">&nbsp;</FONT></DIV> <DIV STYLE="text-indent:4%"><FONT FACE="Times New Roman" SIZE="2"
  COLOR="#000000">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. </FONT></DIV> <DIV><FONT
  SIZE="1">&nbsp;</FONT></DIV> <DIV>
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  <TD> <FONT SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="top" COLSPAN="3" WIDTH="53%"> <DIV><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000"><B>CYBERSOURCE CORPORATION</B></FONT></DIV> </TD> </TR>
  <TR>
  <TD HEIGHT="16"> </TD> </TR>
  <TR>
  <TD> <FONT SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD> <FONT SIZE="1">&nbsp;</FONT></TD>
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  <TD> <FONT SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="top" WIDTH="3%"> <DIV><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">By:</FONT></DIV> </TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="top" ALIGN="center" WIDTH="53%"> <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">/s/&nbsp;&nbsp;&nbsp;&nbsp;S<SMALL>TEVEN</SMALL> D.
  P<SMALL>ELLIZZER&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</SMALL></FONT></DIV> <HR NOSHADE COLOR="#000000" ALIGN="left"></TD> </TR>
  <TR>
  <TD> <FONT SIZE="1">&nbsp;</FONT></TD>
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  <TD> <FONT SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD> <FONT SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD> <FONT SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="bottom" WIDTH="53%"> <DIV STYLE="margin-left:2%; text-indent:-2%"><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">Steven D. Pellizzer</FONT></DIV> <DIV><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">Vice President of
  Finance</FONT></DIV> </TD> </TR>
   </TABLE> </DIV> <DIV><FONT SIZE="1">&nbsp;</FONT></DIV> <DIV><FONT FACE="Times New Roman" SIZE="2" COLOR="#000000">Date:&nbsp;&nbsp;August 12, 2002 </FONT></DIV> <P></P>
  
  
   </BODY></HTML>
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text: Prepared by R.R. Donnelley Financial -- Form 8-K
  SECURITIES AND EXCHANGE COMMISSION
  Washington, D.C. 20549
  FORM 8-K
  CURRENT REPORT
  Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
  Date of Report:
  August 12, 2002
  (Date of earliest event reported)
  CYBERSOURCE CORPORATION
  (Exact name of Registrant as specified in its charter)
  DELAWARE
  000-26477
  77-0472961
  (State or other jurisdiction
  of
  incorporation)
  (Commission
  file
  number)
  (I.R.S. employer
  identification
  no.)
  1295 Charleston Road, Mountain View,
  California
  94043
  (Address of principal executive offices)
  (Zip Code)
  Registrant's telephone number, including area
  code:
  (650) 965-6000
  Item 9.    Regulation FD Disclosure.
  On August 12, 2002, each of the chief executive officer, William S. McKiernan, and the chief financial officer, Steven D. Pellizzer, of
  CyberSource Corporation, a Delaware corporation, executed a certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, which accompanied CyberSource's Form 10-Q filed with the
  Securities and Exchange Commission on August 12, 2002. The text of each of these certifications is set forth below.
  CyberSource Corporation
  CERTIFICATION
  In connection with the periodic report of CyberSource Corporation (the "Company") on Form 10-Q for the period ended June 30, 2002 as filed with the
  Securities and Exchange Commission (the "Report"), I, William S. McKiernan, Chief Executive Officer of the Company, hereby certify as of the date hereof, solely for purposes of Title 18, Chapter 63, Section 1350 of the United States Code,
  that to the best of my knowledge:
  (1)  the Report fully complies with the requirements
  of Section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934, and
  (2)  the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company at the dates and for the periods indicated.
  This Certification has not been, and shall not be deemed, "filed" with the Securities and Exchange Commission.
  Date:
  August 12, 2002
  By:
  /s/    W
  ILLIAM
  S.
  M
  C
  K
  IERNAN
  William S. McKiernan
  Chief Executive
  Officer
  CyberSource Corporation
  CERTIFICATION
  In connection with the periodic report of CyberSource Corporation (the "Company") on Form 10-Q for the period ended June 30, 2002 as filed with the Securities and Exchange Commission (the "Report"), I, Steven D.
  Pellizzer, Vice President of Finance of the Company, hereby certify as of the date hereof, solely for purposes of Title 18, Chapter 63, Section 1350 of the United States Code, that to the best of my knowledge:
  (1)  the Report fully complies with the requirements of
  Section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934, and
  (2)  the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company at the dates and for the periods indicated.
  This Certification has not been, and shall not be deemed, "filed" with the Securities and Exchange Commission.
  Date:  August 12, 2002
  By:
  /s/    S
  TEVEN
  D.
  P
  ELLIZZER
  Steven D. Pellizzer
  Vice President of
  Finance
  The information in this Current Report on Form 8-K is furnished
  pursuant to Item 9 and shall not be deemed to be "filed" for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section.
  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.
  CYBERSOURCE CORPORATION
  By:
  /s/    S
  TEVEN
  D.
  P
  ELLIZZER
  Steven D. Pellizzer
  Vice President of
  Finance
  Date:  August 12, 2002