EXHIBIT 10.27 CERTIFICATE OF REVISED SCHEDULE A In accordance with the last paragraph of Paragraph 11(e) of the Limited Partnership Agreement of RSA Partners I, L.P. (the "Partnership"), Schedule A to such Agreement is hereby revised and restated in its entirety in the form of Exhibit 1 hereto to take account of the retirement of all Class B and Class C Limited Partners of the Partnership on November 13, 2001 and the subsequent decrease on November 28, 2001 of the Subscription of each Partner of the Partnership by seventy percent (70%). IN WITNESS WHEREOF, RSA Ventures, Inc., as the sole General Partner of the Partnership, has executed this Certificate of Revised Schedule A on this 28th day of November, 2001. RSA Ventures, Inc. By: /s/ John F. Kennedy ---------------------------- Title: Treasurer EXHIBIT 1 SCHEDULE A ---------- PERCENTAGE PARTNERS SUBSCRIPTION INTEREST - -------- ------------ ---------- GENERAL PARTNER - --------------- RSA Ventures, Inc. $ 3,015 1.000000% 36 Crosby Drive Bedford, MA 01730 Attn: Administrator Telecopy: (781) 301-5420 E-mail: chargreaves@rsasecurity.com with a copy to: RSA Security Inc. 36 Crosby Drive Bedford, MA 01730 Attn: Legal Department Telecopy: (781) 301-5590 E-mail: mseif@rsasecurity.com CLASS A LIMITED PARTNER $210,637 66.828125%* RSA Security Inc. 36 Crosby Drive Bedford, MA 01730 Attn: Treasurer Telecopy: (781) 301-5590 E-mail: jsprague@rsasecurity.com with a copy to: RSA Security Inc. 36 Crosby Drive Bedford, MA 01730 Attn: Legal Department Telecopy: (781) 301-5590 E-mail: mseif@rsasecurity.com CLASS B LIMITED PARTNERS Barry Rosenbaum $ 34,993 11.250000% 490 W. Oceanview Avenue Del Mar, CA 92014 Telecopy: (858) 720-8475 E-mail: barryrosenbaum@mac.com Charles R. Stuckey, Jr. $10,935 3.515625% RSA Security 36 Crosby Drive Bedford, MA 01730 Telecopy: (781) 301-5420 E-mail: cstuckey@rsasecurity.com Fergal Mullen $21,854 7.031250% RSA Ventures Rue du Rhone 14 CH-1204 Geneva Telecopy: 41-22-819-199 E-mail: fmullen@rsasecurity.com David Clark $8,700 8.437500% 315 Vicente Street San Francisco, CA 94127 Telecopy: (415) 664-3128 E-mail: dfclark@yahoo.com CLASS C LIMITED PARTNERS James Horn $2,623 0.375000% 336 Edgewood Road Redwood City, CA 94062 Telecopy: (650) 261-9119 E-mail: james@thehorns.com Bradley H. Taylor $2,189 0.390625% 21 Rochelle Newport Coast, CA 92657 Telecopy: (949) 852-6985 E-mail: btaylorhome@yahoo.com -2- James K. Sims $6,562 1.171875% GEN3 Partners Ten Post Office Square, 9th Floor Boston, MA 02109 Telecopy: (617) 728-7599 TOTAL: $301,508 100% ======== === * Includes 4.75% Percentage Interest which may be reallocated to additional partners of the Partnership pursuant to Paragraph 5(e) of the Agreement -3-