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  <TITLE>RSA Security Inc.</TITLE>
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  <H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>
  <DIV style="font-family: 'Times New Roman',Times,serif">
  
  <P align="center" style="font-size: 10pt">As filed with the
  Securities and Exchange Commission on June&nbsp;16, 2005
  
  <DIV align="right" style="font-size: 10pt">Registration No.&nbsp;333-_____
  </DIV>
  
  
  <DIV style="width: 100%; border-bottom: 2pt solid black; font-size: 1pt">&nbsp;</DIV>
  <DIV style="width: 100%; border-bottom: 1pt solid black; font-size: 1pt">&nbsp;</DIV>
  
  
  
  
  <P align="center" style="font-size: 14pt"><B>SECURITIES AND EXCHANGE COMMISSION</B>
  
  <DIV align="center" style="font-size: 12pt"><B>Washington, D.C. 20549</B>
  </DIV>
  
  <P align="center" style="font-size: 18pt"><B>FORM S-8</B>
  
  
  <P align="center" style="font-size: 10pt"><B>REGISTRATION STATEMENT UNDER<BR>
  THE SECURITIES ACT OF 1933</B>
  
  
  <DIV align="center">
  <TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
  <!-- Begin Table Head -->
  <TR valign="bottom">
      <TD width="100%">&nbsp;</TD>
      <TD width="5%">&nbsp;</TD>
      <TD width="100%">&nbsp;</TD>
  </TR>
  <TR style="font-size: 24pt" valign="bottom">
      <TD nowrap align="center"><B>RSA SECURITY INC.</B></TD>
  </TR>
  
  <!-- End Table Head -->
  <!-- Begin Table Body -->
  <TR valign="bottom">
      <TD align="center" valign="top">(Exact Name of Registrant as Specified in Its Charter)</TD>
  </TR>
  <TR><TD>&nbsp;</TD></TR>
  <!-- End Table Body -->
  </TABLE>
  </DIV>
  
  <DIV align="center">
  <TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
  <!-- Begin Table Head -->
  <TR valign="bottom">
      <TD width="47%">&nbsp;</TD>
      <TD width="5%">&nbsp;</TD>
      <TD width="47%">&nbsp;</TD>
  </TR>
  <TR style="font-size: 10pt" valign="bottom">
      <TD nowrap align="center"><B>Delaware</B></TD>
      <TD>&nbsp;</TD>
      <TD nowrap align="center"><B>04-2916506</B></TD>
  </TR>
  
  <!-- End Table Head -->
  <!-- Begin Table Body -->
  <TR valign="bottom">
      <TD align="center" valign="top">(State or Other Jurisdiction of<BR>
  Incorporation or Organization)
  </TD>
      <TD>&nbsp;</TD>
      <TD align="center" valign="top">(I.R.S. Employer <BR>Identification
  No.)</TD>
  </TR>
  <TR><TD>&nbsp;</TD></TR>
  <!-- End Table Body -->
  </TABLE>
  </DIV>
  
  <DIV align="center">
  <TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
  <!-- Begin Table Head -->
  <TR valign="bottom">
      <TD width="47%">&nbsp;</TD>
      <TD width="5%">&nbsp;</TD>
      <TD width="47%">&nbsp;</TD>
  </TR>
  <TR style="font-size: 10pt" valign="bottom">
      <TD nowrap align="center"><B>174 Middlesex Turnpike</B></TD>
      <TD>&nbsp;</TD>
      <TD nowrap align="center">&nbsp;</TD>
  </TR>
  <TR style="font-size: 810t" valign="bottom">
      <TD nowrap align="center"><B>Bedford, Massachusetts</B></TD>
      <TD>&nbsp;</TD>
      <TD nowrap align="center"><B>01730</B></TD>
  </TR>
  
  <!-- End Table Head -->
  <!-- Begin Table Body -->
  <TR valign="bottom">
      <TD align="center" valign="top">(Address of Principal Executive Offices)
  </TD>
      <TD>&nbsp;</TD>
      <TD align="center" valign="top">(Zip Code)</TD>
  </TR>
  <TR><TD>&nbsp;</TD></TR>
  <!-- End Table Body -->
  </TABLE>
  </DIV>
  
  
  <P align="center" style="font-size: 12pt"><B>1994 EMPLOYEE STOCK PURCHASE PLAN, AS AMENDED</B><BR>
  (Full Title of the Plan)
  
  
  
  <P align="center" style="font-size: 10pt"><B>ARTHUR W. COVIELLO, JR.<BR>
  President and Chief Executive Officer<BR>
  174 Middlesex Turnpike<BR>
  Bedford, Massachusetts 01730</B><BR>
  (Name and Address of Agent For Service)<BR>
  <B>(781)&nbsp;515-5000</B><BR>
  (Telephone Number, Including Area Code, of Agent For Service)
  
  
  
  
  
  <P align="center" style="font-size: 10pt"><B>CALCULATION OF REGISTRATION FEE</B>
  
  <DIV align="center">
  <TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
  <!-- Begin Table Head -->
  <TR valign="bottom">
      <TD width="1%">&nbsp;</TD>
      <TD width="22%">&nbsp;</TD>
      <TD width="1%">&nbsp;</TD><!-- VRule -->
      <TD width="1%">&nbsp;</TD>
      <TD width="1%">&nbsp;</TD>
      <TD width="5%">&nbsp;</TD>
      <TD width="1%">&nbsp;</TD>
      <TD width="1%">&nbsp;</TD><!-- VRule -->
      <TD width="1%">&nbsp;</TD>
      <TD width="1%">&nbsp;</TD>
      <TD width="5%">&nbsp;</TD>
      <TD width="1%">&nbsp;</TD>
      <TD width="1%">&nbsp;</TD><!-- VRule -->
      <TD width="1%">&nbsp;</TD>
      <TD width="1%">&nbsp;</TD>
      <TD width="5%">&nbsp;</TD>
      <TD width="1%">&nbsp;</TD>
      <TD width="1%">&nbsp;</TD><!-- VRule -->
      <TD width="1%">&nbsp;</TD>
      <TD width="1%">&nbsp;</TD>
      <TD width="1%">&nbsp;</TD>
  </TR><TR style="font-size: 1px" valign="bottom">
      <TD nowrap align="left" colspan="21" style="border-bottom: 3px solid #000000">&nbsp;</TD>
  </TR>
  <TR style="font-size:10pt" valign="bottom">    <TD width="1%">&nbsp;</TD>
  
      <TD>&nbsp;</TD>
      <TD style="border-right: 2px solid #000000">&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD style="border-right: 2px solid #000000">&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD nowrap align="center" colspan="2">Proposed Maximum</TD>
      <TD>&nbsp;</TD>
      <TD style="border-right: 2px solid #000000">&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD nowrap align="center" colspan="2">Proposed Maximum</TD>
      <TD>&nbsp;</TD>
      <TD style="border-right: 2px solid #000000">&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD nowrap align="center" colspan="2">&nbsp;</TD>
  </TR>
  <TR style="font-size:10pt" valign="bottom">    <TD width="1%">&nbsp;</TD>
  
      <TD nowrap align="center">Title of Securities</TD>
      <TD style="border-right: 2px solid #000000">&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD nowrap align="center" colspan="2">Amount to be</TD>
      <TD>&nbsp;</TD>
      <TD style="border-right: 2px solid #000000">&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD nowrap align="center" colspan="2">Offering Price Per</TD>
      <TD>&nbsp;</TD>
      <TD style="border-right: 2px solid #000000">&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD nowrap align="center" colspan="2">Aggregate Offering</TD>
      <TD>&nbsp;</TD>
      <TD style="border-right: 2px solid #000000">&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD nowrap align="center" colspan="2">Amount of</TD>
  </TR>
  <TR style="font-size:10pt" valign="bottom">    <TD width="1%">&nbsp;</TD>
  
      <TD nowrap align="center">to be Registered</TD>
      <TD style="border-right: 2px solid #000000">&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD nowrap align="center" colspan="2">Registered(1)</TD>
      <TD>&nbsp;</TD>
      <TD style="border-right: 2px solid #000000">&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD nowrap align="center" colspan="2">Share</TD>
      <TD>&nbsp;</TD>
      <TD style="border-right: 2px solid #000000">&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD nowrap align="center" colspan="2">Price</TD>
      <TD>&nbsp;</TD>
      <TD style="border-right: 2px solid #000000">&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD nowrap align="center" colspan="2">Registration Fee</TD>
  </TR>
  
  <!-- End Table Head -->
  <!-- Begin Table Body -->
  <TR valign="bottom">
      <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
  
  <TD style="border-top: 2px solid #000000"><DIV style="margin-left:15px; text-indent:0px">Common Stock, $0.01
  par value per share
  (including the
  associated Common
  Stock Purchase
  Rights)</DIV></TD>
      <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
      <TD style="border-top: 2px solid #000000">&nbsp;</TD>
  
  <TD colspan="3" align="center" style="border-top: 2px solid #000000">1,000,000 shares</TD>
      <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
      <TD style="border-top: 2px solid #000000">&nbsp;</TD>
      <TD nowrap align="left" style="border-top: 2px solid #000000">$</TD>
      <TD align="right" style="border-top: 2px solid #000000">11.885</TD>
      <TD nowrap style="border-top: 2px solid #000000">(2)</TD>
      <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
      <TD style="border-top: 2px solid #000000">&nbsp;</TD>
  
  <TD nowrap align="left" style="border-top: 2px solid #000000">$</TD>
      <TD align="right" style="border-top: 2px solid #000000">11,885,000</TD>
      <TD nowrap style="border-top: 2px solid #000000">(2)</TD>
  
  <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
      <TD style="border-top: 2px solid #000000">&nbsp;</TD>
      <TD align="left" style="border-top: 2px solid #000000">$</TD>
      <TD align="right" style="border-top: 2px solid #000000">1,398.86</TD>
  </TR>
  <TR style="font-size: 1px" valign="bottom">
      <TD nowrap align="left" colspan="21" style="border-top: 3px solid #000000">&nbsp;</TD>
  </TR>
  
  <!-- End Table Body -->
  </TABLE>
  </DIV>
  <P>
  <TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">
  
  <TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
      <TD width="2%" style="background: transparent">&nbsp;</TD>
      <TD width="3%" nowrap align="left">(1)</TD>
      <TD width="1%">&nbsp;</TD>
      <TD>In accordance with Rule&nbsp;416 under the Securities Act of 1933, as amended, this
  registration statement shall be deemed to cover any additional securities that may
  from time to time be offered or issued to prevent dilution resulting from stock
  splits, stock dividends or similar transactions.</TD>
  </TR>
  
  <TR>
      <TD colspan="5">&nbsp;</TD>
  </TR>
  <TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
      <TD width="2%" style="background: transparent">&nbsp;</TD>
      <TD width="3%" nowrap align="left">(2)</TD>
      <TD width="1%">&nbsp;</TD>
      <TD>Estimated solely for the purpose of calculating the registration fee pursuant to
  Rules 457(c) and 457(h) of the Securities Act of 1933, as amended, and based upon the
  average of the high and low prices of the Registrant&#146;s Common Stock as reported on the
  Nasdaq National Market on June 9, 2005.</TD>
  </TR>
  
  </TABLE>
  
  
  <DIV style="width: 100%; border-bottom: 1pt solid black; margin-top: 10pt; font-size: 1pt">&nbsp;</DIV>
  <DIV style="width: 100%; border-bottom: 2pt solid black; font-size: 1pt">&nbsp;</DIV>
  
  
  
  
  
  <P align="center" style="font-size: 10pt">&nbsp;
  </DIV>
  
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  <DIV style="font-family: 'Times New Roman',Times,serif">
  
  
  
  
  
  
  
  
  <!-- TOC -->
  <A name="toc"><DIV align="CENTER" style="page-break-before:always"><U><B>TABLE OF CONTENTS</B></U></DIV></A>
  
  <P><CENTER>
  <TABLE border="0" width="90%" cellpadding="0" cellspacing="0">
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  	<TD width="3%"></TD>
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  	<TD width="76%"></TD>
  </TR>
  <TR><TD colspan="9"><A HREF="#000">STATEMENT OF INCORPORATION BY REFERENCE</A></TD></TR>
  <TR><TD colspan="9"><A HREF="#001">Item&nbsp;3. Incorporation of Documents by Reference.</A></TD></TR>
  <TR><TD colspan="9"><A HREF="#002">Item&nbsp;5. Interests of Named Experts and Counsel.</A></TD></TR>
  <TR><TD colspan="9"><A HREF="#003"> Item&nbsp;8. Exhibits.</A></TD></TR>
  <TR><TD colspan="9"><A HREF="#004">SIGNATURES</A></TD></TR>
  <TR><TD colspan="9"><A HREF="#005">POWER OF ATTORNEY AND SIGNATURES</A></TD></TR>
  <TR><TD colspan="9"><A HREF="#006">INDEX TO EXHIBITS</A></TD></TR>
  <TR><TD colspan="9"><A HREF="b55473epexv5.txt">EX-5 Opinion of Kathryn Leach, Esq.</A></TD></TR>
  <TR><TD colspan="9"><A HREF="b55473epexv23w2.htm">EX-23.2 Consent of Independent Registered Public Accounting Firm</A></TD></TR>
  </TABLE>
  </CENTER>
  <!-- /TOC -->
  <P><HR noshade><P>
  <H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>
  
  
  
  
  <!-- link1 "STATEMENT OF INCORPORATION BY REFERENCE" -->
  <DIV align="left"><A NAME="000"></A></DIV>
  
  <P align="center" style="font-size: 10pt"><B>STATEMENT OF INCORPORATION BY REFERENCE</B>
  
  
  
  <P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Except as otherwise set forth below, this Registration Statement on Form S-8 incorporates by
  reference the contents of the Registration Statements on Form S-8, File No.&nbsp;333-107267, File No.
  333-73750, File No.&nbsp;333-84597 and File No.&nbsp;333-88508, relating to the Registrant&#146;s 1994 Employee
  Stock Purchase Plan, as amended (the &#147;Initial Registration Statement&#148;).
  
  
  <P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Item&nbsp;3 of the Initial Registration Statement is amended and restated in its entirety as follows:
  
  <!-- link1 "Item&nbsp;3. Incorporation of Documents by Reference." -->
  <DIV align="left"><A NAME="001"></A></DIV>
  
  <P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Item&nbsp;3. Incorporation of Documents by Reference.</B>
  
  
  
  <P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Registrant is subject to the informational and reporting requirements of Sections&nbsp;13(a),
  14, and 15(d) of the Securities Exchange Act of 1934, as amended (the &#147;Exchange Act&#148;), and in
  accordance therewith files reports, proxy statements and other information with the Securities and
  Exchange Commission (the &#147;Commission&#148;). The following documents, which are on file with the
  Commission, are incorporated in this registration statement by reference:
  
  
  <P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The Registrant&#146;s latest annual report filed pursuant to Section 13(a) or 15(d) of the
  Exchange Act or the latest prospectus filed pursuant to Rule 424(b) under the Securities Act that
  contains audited financial statements for the Registrant&#146;s latest fiscal year for which such
  statements have been filed.
  
  
  <P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; All other reports filed pursuant to Section 13(a) or 15(d) of the Exchange Act since the
  end of the fiscal year covered by the document referred to in (a)&nbsp;above.
  
  
  <P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The description of the securities contained in the Registrant&#146;s registration statements on
  Form 8-A filed under the Exchange Act, including any amendment or report filed for the purpose of
  updating such description.
  
  
  <P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;All documents subsequently filed by the Registrant pursuant to Sections&nbsp;13(a), 13(c), 14 and
  15(d) of the Exchange Act, prior to the filing of a post-effective amendment which indicates that
  all securities offered hereby have been sold or which deregisters all securities then remaining
  unsold, shall be deemed to be incorporated by reference in this registration statement and to be
  part hereof from the date of the filing of such documents. Any statement contained in a document
  incorporated or deemed to be incorporated by reference herein shall be deemed to be modified or
  superseded for the purposes of this registration statement to the extent that a statement contained
  herein or in any other subsequently filed document which also is or is deemed to be incorporated by
  reference herein modifies or supersedes such statement. Any statement so modified or superseded
  shall not be deemed, except as so modified or superseded, to constitute a part of this registration
  statement.
  
  
  <P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Item&nbsp;5 of the Initial Registration Statement is amended and restated in its entirety as follows:
  
  <!-- link1 "Item&nbsp;5. Interests of Named Experts and Counsel." -->
  <DIV align="left"><A NAME="002"></A></DIV>
  
  <P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Item&nbsp;5. Interests of Named Experts and Counsel.</B>
  
  
  
  <P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Kathryn L. Leach, Assistant General Counsel of the Registrant, has opined as to the legality
  of the securities being offered by this registration statement. Ms.&nbsp;Leach owns 506 shares of the
  Registrant&#146;s common stock and options to purchase an aggregate of 21,010 shares of the Registrant&#146;s
  common stock, which become exerciseable in periodic installments through 2013.
  
  
  <P align="center" style="font-size: 10pt">&nbsp;
  </DIV>
  
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  <P><HR noshade><P>
  <H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>
  
  <DIV style="font-family: 'Times New Roman',Times,serif">
  <!-- link1 " Item&nbsp;8. Exhibits." -->
  <DIV align="left"><A NAME="003"></A></DIV>
  
  <P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Item&nbsp;8. Exhibits.</B>
  
  
  
  <P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Exhibit&nbsp;Index immediately preceding the exhibits is incorporated herein by reference.
  
  
  <P align="center" style="font-size: 10pt">&nbsp;
  </DIV>
  
  <!-- PAGEBREAK -->
  <P><HR noshade><P>
  <H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>
  
  <DIV style="font-family: 'Times New Roman',Times,serif">
  <!-- link1 "SIGNATURES" -->
  <DIV align="left"><A NAME="004"></A></DIV>
  
  <P align="center" style="font-size: 10pt"><B>SIGNATURES</B>
  
  
  
  <P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant to the requirements of the Securities Act of 1933, the Registrant certifies that it
  has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and
  has duly caused this registration statement to be signed on its behalf by the undersigned,
  thereunto duly authorized, in the Town of Bedford, Massachusetts, on
  this 16th day of June, 2005.
  
  
  <TABLE width="100%" border="0" cellspacing="0" cellpadding="0" style="font-size: 10pt">
  <TR>
      <TD width="48%">&nbsp;</TD>
      <TD width="1%">&nbsp;</TD>
      <TD width="1%">&nbsp;</TD>
      <TD width="35%">&nbsp;</TD>
      <TD width="15%">&nbsp;</TD>
  </TR>
  <TR>
      <TD valign="top" align="left">&nbsp;</TD>
      <TD colspan="3" align="left">RSA SECURITY INC.<BR>
  &nbsp;</TD>
      <TD>&nbsp;</TD>
  </TR><TR>
      <TD align="left">&nbsp;</TD>
      <TD valign="top">By:&nbsp;&nbsp;</TD>
      <TD colspan="2" style="border-bottom: 1px solid #000000" align="left">/s/ Arthur W. Coviello, Jr.
  &nbsp;</TD>
      <TD>&nbsp;</TD>
  </TR><TR>
      <TD align="left">&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD colspan="2" align="left">Arthur W. Coviello, Jr.&nbsp;</TD>
      <TD>&nbsp;</TD>
  </TR><TR>
      <TD align="left">&nbsp;</TD>
      <TD>&nbsp;</TD>
      <TD colspan="2" align="left">President and Chief Executive Officer&nbsp;</TD>
      <TD>&nbsp;</TD>
  </TR>
  <TR>
      <TD colspan="5">&nbsp;</TD>
  </TR>
  </TABLE>
  <!-- link1 "POWER OF ATTORNEY AND SIGNATURES" -->
  <DIV align="left"><A NAME="005"></A></DIV>
  
  <P align="center" style="font-size: 10pt"><B>POWER OF ATTORNEY AND SIGNATURES</B>
  
  
  
  
  <P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We, the undersigned officers and directors of RSA Security Inc., hereby severally constitute
  and appoint Arthur W. Coviello, Jr., Jeffrey D. Glidden and Margaret K. Seif, and each of them
  singly, our true and lawful attorneys with full power to them, and each of them singly, to sign for
  us and in our names in the capacities indicated below, the registration statement on Form S-8 filed
  herewith and any and all subsequent amendments to said registration statement, and generally to do
  all such things in our names and on our behalf in our capacities as officers and directors to
  enable RSA Security Inc. to comply with the provisions of the Securities Act of 1933, as amended,
  and all requirements of the Securities and Exchange Commission, hereby ratifying and confirming our
  signatures as they may be signed by our said attorneys, or any of them, to said registration
  statement and any and all amendments thereto.
  
  
  <P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant to the requirements of the Securities Act of 1933, this registration statement has
  been signed by the following persons in the capacities and on the dates indicated.
  
  <DIV align="center">
  <TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
  <!-- Begin Table Head -->
  <TR valign="bottom">
      <TD width="30%">&nbsp;</TD>
      <TD width="3%">&nbsp;</TD>
      <TD width="47%">&nbsp;</TD>
      <TD width="3%">&nbsp;</TD>
      <TD width="17%">&nbsp;</TD>
  </TR>
  <TR style="font-size: 10pt" valign="bottom">
  
  <TD nowrap align="center"><B><U>Signature</U></B></TD>
      <TD>&nbsp;</TD>
  
  <TD nowrap align="center"><B><U>Title</U></B></TD>
      <TD>&nbsp;</TD>
  
  <TD nowrap align="center"><B><U>Date</U></B></TD>
  </TR>
  <TR><TD>&nbsp;</TD></TR>
  <!-- End Table Head -->
  <!-- Begin Table Body -->
  <TR valign="bottom">
  
  <TD align="left" nowrap valign="top">/s/ Arthur W. Coviello, Jr.
  <HR size="1" noshade color="#000000">
  Arthur W. Coviello, Jr.</TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">
  President, Chief Executive
  Officer and Director <BR>(Principal
  Executive Officer)
  </TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">June 16, 2005</TD>
  </TR>
  <TR><TD>&nbsp;</TD></TR>
  <TR valign="bottom" style="padding-top: 1em">
      <TD align="left" nowrap valign="top">/s/ Jeffrey D. Glidden
  <HR size="1" noshade color="#000000">
  Jeffrey D. Glidden</TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">
  Senior Vice President, Finance
  and Operations, Treasurer <BR>
  and
  Chief Financial Officer
  (Principal Financial Officer)
  </TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">June 16, 2005</TD>
  </TR>
  <TR><TD>&nbsp;</TD></TR>
  <TR valign="bottom" style="padding-top: 1em">
      <TD align="left" nowrap valign="top">/s/ John M. Parsons
  <HR size="1" noshade color="#000000">
  John M. Parsons</TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">
  Vice President, Finance and
  Accounting <BR>
  (Principal Accounting
  Officer)
  </TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">June 16, 2005</TD>
  </TR>
  <!-- End Table Body -->
  </TABLE>
  </DIV>
  
  
  <P align="center" style="font-size: 10pt">&nbsp;
  </DIV>
  
  <!-- PAGEBREAK -->
  <P><HR noshade><P>
  <H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>
  
  <DIV style="font-family: 'Times New Roman',Times,serif">
  
  <DIV align="center">
  <TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
  <!-- Begin Table Head -->
  <TR valign="bottom">
      <TD width="30%">&nbsp;</TD>
      <TD width="3%">&nbsp;</TD>
      <TD width="47%">&nbsp;</TD>
      <TD width="3%">&nbsp;</TD>
      <TD width="17%">&nbsp;</TD>
  </TR>
  <TR style="font-size: 10pt" valign="bottom">
  
  <TD nowrap align="center"><B><U>Signature</U></B></TD>
      <TD>&nbsp;</TD>
  
  <TD nowrap align="center"><B><U>Title</U></B></TD>
      <TD>&nbsp;</TD>
  
  <TD nowrap align="center"><B><U>Date</U></B></TD>
  
  
  </TR>
  <TR><TD>&nbsp;</TD></TR>
  <!-- End Table Head -->
  <!-- Begin Table Body -->
  <TR valign="bottom" style="padding-top: 1em">
      <TD align="left" nowrap valign="top">/s/ Robert P. Badavas
  <HR size="1" noshade color="#000000">
  Robert P. Badavas</TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">
  Director
  </TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">June 16, 2005</TD>
  </TR>
  <TR><TD>&nbsp;</TD></TR>
  <TR valign="bottom" style="padding-top: 1em">
      <TD align="left" nowrap valign="top">/s/ Richard A. DeMillo
  <HR size="1" noshade color="#000000">
  Richard A. DeMillo</TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">
  Director
  </TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">June 16, 2005</TD>
  </TR>
  <TR><TD>&nbsp;</TD></TR>
  <TR valign="bottom" style="padding-top: 1em">
      <TD align="left" nowrap valign="top">/s/ Richard L. Earnest
  <HR size="1" noshade color="#000000">
  Richard L. Earnest</TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">
  Director
  </TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">June 16, 2005</TD>
  </TR>
  <TR><TD>&nbsp;</TD></TR>
  <TR valign="bottom" style="padding-top: 1em">
      <TD align="left" nowrap valign="top">/s/ Gloria C. Larson
  <HR size="1" noshade color="#000000">
  Gloria C. Larson</TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">
  Director
  </TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">June 16, 2005</TD>
  </TR>
  <TR><TD>&nbsp;</TD></TR>
  <TR valign="bottom" style="padding-top: 1em">
      <TD align="left" nowrap valign="top">/s/ Joseph B. Lassiter, III
  <HR size="1" noshade color="#000000">
  Joseph B. Lassiter, III</TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">
  Director
  </TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">June 16, 2005</TD>
  </TR>
  <TR><TD>&nbsp;</TD></TR>
  <TR valign="bottom" style="padding-top: 1em">
      <TD align="left" nowrap valign="top">/s/ Charles R. Stuckey, Jr.
  <HR size="1" noshade color="#000000">
  Charles R. Stuckey, Jr.</TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">
  Director
  </TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">June 16, 2005</TD>
  </TR>
  <!-- End Table Body -->
  </TABLE>
  </DIV>
  
  
  <P align="center" style="font-size: 10pt">&nbsp;
  </DIV>
  
  <!-- PAGEBREAK -->
  <P><HR noshade><P>
  <H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>
  
  <DIV style="font-family: 'Times New Roman',Times,serif">
  
  <!-- link1 "INDEX TO EXHIBITS" -->
  <DIV align="left"><A NAME="006"></A></DIV>
  
  <P align="center" style="font-size: 10pt"><B>INDEX TO EXHIBITS</B>
  
  
  <DIV align="center">
  <TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
  <!-- Begin Table Head -->
  <TR valign="bottom">
      <TD width="8%">&nbsp;</TD>
      <TD width="2%">&nbsp;</TD>
      <TD width="90%">&nbsp;</TD>
  </TR>
  <TR style="font-size: 10pt" valign="bottom">
      <TD nowrap align="left"><U>Number</U></TD>
      <TD>&nbsp;</TD>
      <TD nowrap align="left"><U>Description</U></TD>
  </TR>
  <TR><TD>&nbsp;</TD></TR>
  <!-- End Table Head -->
  <!-- Begin Table Body -->
  <TR valign="bottom">
      <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">4.3(1)
  </DIV></TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">Rights Agreement dated as of July&nbsp;20, 1999 between the Registrant
  and State Street Bank and Trust Company as Rights Agent, which
  includes as Exhibit&nbsp;A the Form of Rights Certificate and as Exhibit
  B the Summary of Rights to Purchase Common Stock</TD>
  </TR>
  <TR><TD>&nbsp;</TD></TR>
  <TR valign="bottom">
      <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">5
  </DIV></TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">Opinion of Kathryn L. Leach, Esq., Assistant General Counsel of the
  Registrant</TD>
  </TR>
  <TR><TD>&nbsp;</TD></TR>
  <TR valign="bottom">
      <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">23.1
  </DIV></TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">Consent of Kathryn L. Leach, Esq. (included in Exhibit&nbsp;5)</TD>
  </TR>
  <TR><TD>&nbsp;</TD></TR>
  <TR valign="bottom">
      <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">23.2
  </DIV></TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">Consent of Independent Registered
  Public Accounting Firm</TD>
  </TR>
  <TR><TD>&nbsp;</TD></TR>
  <TR valign="bottom">
      <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">24
  </DIV></TD>
      <TD>&nbsp;</TD>
      <TD align="left" valign="top">Power of attorney (included on the signature pages of this
  registration statement)</TD>
  </TR>
  <!-- End Table Body -->
  </TABLE>
  </DIV>
  
  
  <P>
  <TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">
  
  <TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
      <TD width="2%" style="background: transparent">&nbsp;</TD>
      <TD width="3%" nowrap align="left">(1)</TD>
      <TD width="1%">&nbsp;</TD>
      <TD>Previously filed with the Securities and Exchange Commission as Exhibit&nbsp;1 to the
  Registrant&#146;s Registration Statement on Form 8-A (File No.&nbsp;000-25120) and incorporated
  herein by reference.</TD>
  </TR>
  
  </TABLE>
  
  
  
  <P align="center" style="font-size: 10pt">&nbsp;
  </DIV>
  
  
  </BODY>
  </HTML>
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metadata_filer: {"company-data": {"conformed-name": "RSA SECURITY INC/DE/", "cik": "0000932064", "assigned-sic": "3577", "irs-number": "042916506", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "S-8", "act": "33", "file-number": "333-125869", "film-number": "05900832"}, "business-address": {"street1": "174 MIDDLESEX TURNPIKE", "city": "BEDFORD", "state": "MA", "zip": "01730", "phone": "781-515-5422"}, "mail-address": {"street1": "174 MIDDLESEX TURNPIKE", "city": "BEDFORD", "state": "MA", "zip": "01730"}, "former-company": {"former-conformed-name": "SECURITY DYNAMICS TECHNOLOGIES INC /DE/", "date-changed": "19941027"}}
text: RSA Security Inc.
  Table of Contents
  As filed with the
  Securities and Exchange Commission on June 16, 2005
  Registration No. 333-_____
  SECURITIES AND EXCHANGE COMMISSION
  Washington, D.C. 20549
  FORM S-8
  REGISTRATION STATEMENT UNDER
  THE SECURITIES ACT OF 1933
  RSA SECURITY INC.
  (Exact Name of Registrant as Specified in Its Charter)
  Delaware
  04-2916506
  (State or Other Jurisdiction of
  Incorporation or Organization)
  (I.R.S. Employer
  Identification
  No.)
  174 Middlesex Turnpike
  Bedford, Massachusetts
  01730
  (Address of Principal Executive Offices)
  (Zip Code)
  1994 EMPLOYEE STOCK PURCHASE PLAN, AS AMENDED
  (Full Title of the Plan)
  ARTHUR W. COVIELLO, JR.
  President and Chief Executive Officer
  174 Middlesex Turnpike
  Bedford, Massachusetts 01730
  (Name and Address of Agent For Service)
  (781) 515-5000
  (Telephone Number, Including Area Code, of Agent For Service)
  CALCULATION OF REGISTRATION FEE
  Proposed Maximum
  Proposed Maximum
  Title of Securities
  Amount to be
  Offering Price Per
  Aggregate Offering
  Amount of
  to be Registered
  Registered(1)
  Share
  Price
  Registration Fee
  Common Stock, $0.01
  par value per share
  (including the
  associated Common
  Stock Purchase
  Rights)
  1,000,000 shares
  $
  11.885
  (2)
  $
  11,885,000
  (2)
  $
  1,398.86
  (1)
  In accordance with Rule 416 under the Securities Act of 1933, as amended, this
  registration statement shall be deemed to cover any additional securities that may
  from time to time be offered or issued to prevent dilution resulting from stock
  splits, stock dividends or similar transactions.
  (2)
  Estimated solely for the purpose of calculating the registration fee pursuant to
  Rules 457(c) and 457(h) of the Securities Act of 1933, as amended, and based upon the
  average of the high and low prices of the Registrant's Common Stock as reported on the
  Nasdaq National Market on June 9, 2005.
  TABLE OF CONTENTS
  STATEMENT OF INCORPORATION BY REFERENCE
  Item 3. Incorporation of Documents by Reference.
  Item 5. Interests of Named Experts and Counsel.
  Item 8. Exhibits.
  SIGNATURES
  POWER OF ATTORNEY AND SIGNATURES
  INDEX TO EXHIBITS
  EX-5 Opinion of Kathryn Leach, Esq.
  EX-23.2 Consent of Independent Registered Public Accounting Firm
  Table of Contents
  STATEMENT OF INCORPORATION BY REFERENCE
  Except as otherwise set forth below, this Registration Statement on Form S-8 incorporates by
  reference the contents of the Registration Statements on Form S-8, File No. 333-107267, File No.
  333-73750, File No. 333-84597 and File No. 333-88508, relating to the Registrant's 1994 Employee
  Stock Purchase Plan, as amended (the "Initial Registration Statement").
  Item 3 of the Initial Registration Statement is amended and restated in its entirety as follows:
  Item 3. Incorporation of Documents by Reference.
  The Registrant is subject to the informational and reporting requirements of Sections 13(a),
  14, and 15(d) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), and in
  accordance therewith files reports, proxy statements and other information with the Securities and
  Exchange Commission (the "Commission"). The following documents, which are on file with the
  Commission, are incorporated in this registration statement by reference:
  (a)      The Registrant's latest annual report filed pursuant to Section 13(a) or 15(d) of the
  Exchange Act or the latest prospectus filed pursuant to Rule 424(b) under the Securities Act that
  contains audited financial statements for the Registrant's latest fiscal year for which such
  statements have been filed.
  (b)      All other reports filed pursuant to Section 13(a) or 15(d) of the Exchange Act since the
  end of the fiscal year covered by the document referred to in (a) above.
  (c)      The description of the securities contained in the Registrant's registration statements on
  Form 8-A filed under the Exchange Act, including any amendment or report filed for the purpose of
  updating such description.
  All documents subsequently filed by the Registrant pursuant to Sections 13(a), 13(c), 14 and
  15(d) of the Exchange Act, prior to the filing of a post-effective amendment which indicates that
  all securities offered hereby have been sold or which deregisters all securities then remaining
  unsold, shall be deemed to be incorporated by reference in this registration statement and to be
  part hereof from the date of the filing of such documents. Any statement contained in a document
  incorporated or deemed to be incorporated by reference herein shall be deemed to be modified or
  superseded for the purposes of this registration statement to the extent that a statement contained
  herein or in any other subsequently filed document which also is or is deemed to be incorporated by
  reference herein modifies or supersedes such statement. Any statement so modified or superseded
  shall not be deemed, except as so modified or superseded, to constitute a part of this registration
  statement.
  Item 5 of the Initial Registration Statement is amended and restated in its entirety as follows:
  Item 5. Interests of Named Experts and Counsel.
  Kathryn L. Leach, Assistant General Counsel of the Registrant, has opined as to the legality
  of the securities being offered by this registration statement. Ms. Leach owns 506 shares of the
  Registrant's common stock and options to purchase an aggregate of 21,010 shares of the Registrant's
  common stock, which become exerciseable in periodic installments through 2013.
  Table of Contents
  Item 8. Exhibits.
  The Exhibit Index immediately preceding the exhibits is incorporated herein by reference.
  Table of Contents
  SIGNATURES
  Pursuant to the requirements of the Securities Act of 1933, the Registrant certifies that it
  has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and
  has duly caused this registration statement to be signed on its behalf by the undersigned,
  thereunto duly authorized, in the Town of Bedford, Massachusetts, on
  this 16th day of June, 2005.
  RSA SECURITY INC.
  By:
  /s/ Arthur W. Coviello, Jr.
  Arthur W. Coviello, Jr.
  President and Chief Executive Officer
  POWER OF ATTORNEY AND SIGNATURES
  We, the undersigned officers and directors of RSA Security Inc., hereby severally constitute
  and appoint Arthur W. Coviello, Jr., Jeffrey D. Glidden and Margaret K. Seif, and each of them
  singly, our true and lawful attorneys with full power to them, and each of them singly, to sign for
  us and in our names in the capacities indicated below, the registration statement on Form S-8 filed
  herewith and any and all subsequent amendments to said registration statement, and generally to do
  all such things in our names and on our behalf in our capacities as officers and directors to
  enable RSA Security Inc. to comply with the provisions of the Securities Act of 1933, as amended,
  and all requirements of the Securities and Exchange Commission, hereby ratifying and confirming our
  signatures as they may be signed by our said attorneys, or any of them, to said registration
  statement and any and all amendments thereto.
  Pursuant to the requirements of the Securities Act of 1933, this registration statement has
  been signed by the following persons in the capacities and on the dates indicated.
  Signature
  Title
  Date
  /s/ Arthur W. Coviello, Jr.
  Arthur W. Coviello, Jr.
  President, Chief Executive
  Officer and Director
  (Principal
  Executive Officer)
  June 16, 2005
  /s/ Jeffrey D. Glidden
  Jeffrey D. Glidden
  Senior Vice President, Finance
  and Operations, Treasurer
  and
  Chief Financial Officer
  (Principal Financial Officer)
  June 16, 2005
  /s/ John M. Parsons
  John M. Parsons
  Vice President, Finance and
  Accounting
  (Principal Accounting
  Officer)
  June 16, 2005
  Table of Contents
  Signature
  Title
  Date
  /s/ Robert P. Badavas
  Robert P. Badavas
  Director
  June 16, 2005
  /s/ Richard A. DeMillo
  Richard A. DeMillo
  Director
  June 16, 2005
  /s/ Richard L. Earnest
  Richard L. Earnest
  Director
  June 16, 2005
  /s/ Gloria C. Larson
  Gloria C. Larson
  Director
  June 16, 2005
  /s/ Joseph B. Lassiter, III
  Joseph B. Lassiter, III
  Director
  June 16, 2005
  /s/ Charles R. Stuckey, Jr.
  Charles R. Stuckey, Jr.
  Director
  June 16, 2005
  Table of Contents
  INDEX TO EXHIBITS
  Number
  Description
  4.3(1)
  Rights Agreement dated as of July 20, 1999 between the Registrant
  and State Street Bank and Trust Company as Rights Agent, which
  includes as Exhibit A the Form of Rights Certificate and as Exhibit
  B the Summary of Rights to Purchase Common Stock
  5
  Opinion of Kathryn L. Leach, Esq., Assistant General Counsel of the
  Registrant
  23.1
  Consent of Kathryn L. Leach, Esq. (included in Exhibit 5)
  23.2
  Consent of Independent Registered
  Public Accounting Firm
  24
  Power of attorney (included on the signature pages of this
  registration statement)
  (1)
  Previously filed with the Securities and Exchange Commission as Exhibit 1 to the
  Registrant's Registration Statement on Form 8-A (File No. 000-25120) and incorporated
  herein by reference.