Conference Call on December 5, 2007

English webcast French webcast

Mississauga, Ontario, (November 28, 2007) -- Certicom Corp. (TSX: CIC)

A question and answer session for analysts and institutional investors will follow management’s presentation.

A taped rebroadcast will be available to listeners until 12 a.m. on December 12, 2007. To access the rebroadcast, please dial 416-640-1917 or 1-877-289-8525 and enter the passcode 21251970#.

About Certicom

Certicom protects the value of content, applications and devices with government-approved security. Adopted by the National Security Agency (NSA) for government communications, Elliptic Curve Cryptography (ECC) provides the most security per bit of any known public-key scheme. As the global leader in ECC, Certicom security offerings are currently licensed to more than 300 customers including General Dynamics, Motorola, Oracle, Research In Motion and Unisys. Founded in 1985, Certicom’s corporate offices are in Mississauga, Ontario, Canada with worldwide sales and marketing headquarters in Reston, Virginia and offices in the U.S., Canada, Europe and China. Visit www.certicom.com

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Certicom, Certicom Security Architecture, Certicom Trust Infrastructure, Certicom CodeSign, Certicom KeyInject, Security Builder, Security Builder API, Security Builder BSP, Security Builder Crypto, Security Builder ETS, Security Builder GSE, Security Builder IPSec, Security Builder NSE, Security Builder PKI and Security Builder SSL are trademarks or registered trademarks of Certicom Corp. All other companies and products listed herein are trademarks or registered trademarks of their respective holders. Information subject to change.

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