CERTICOM COMMENTS ON SECOND QUARTER RESULTS

Mississauga, Ontario (November 5, 2007) – Certicom Corp. (TSX: CIC) (“Certicom” or the “Company”) today announced that revenue for the second quarter of fiscal 2008, ended October 31, 2007, is expected to be lower than what management believes are market expectations. Second quarter revenue is expected to be in the range of US$3.1 million to $3.5 million.

“This quarter’s revenue fell short of expectations due to a combination of factors, including the complexity of the strategic deals we focus on and our product development shift towards more complete security solutions in response to changes in market demand. We may encounter revenue variability over the next few quarters as we adapt to changing market dynamics, progress through the Sony patent litigation case, and proceed with executing our growth strategy,” said Bernard Crotty, Certicom’s President and Chief Executive Officer.

Mr. Crotty continued, “While we are disappointed with this quarter’s revenue, it is important to note that we have not lost any second quarter prospective deals and our pipeline of opportunities remains robust. Furthermore, our outlook remains bright based on several encouraging factors: our growing portfolio of design wins provides a strong base for building recurring revenue, the evidence of global adoption of Certicom’s technology continues to accumulate, and our product development strategy is making excellent progress.”

The expected range for the Company’s operating expenses in the second quarter of fiscal 2008 is US$6.1 million to $6.5 million, consistent with the expense guidance given last quarter.

The Company expects to make an announcement about Certicom’s new Chief Executive Officer by December 31, 2007.

Certicom’s complete second quarter results will be released after market close on December 4, 2007.

Conference Call

Management will host a conference call to discuss the pre-earnings announcement at 11a.m. ET (8 a.m. PT) on Tuesday, November 6, 2007. Participants can access the call by dialing
416-644-3427 or 1-800-590-1508. The live audio webcast can be accessed by visiting www.certicom.com. A question and answer session for analysts and institutional investors will follow the call. An archived recording of the call will be available from 12 p.m. (ET) on November 6 until 12 a.m. (ET) on November 13, 2007. Participants can access the archive by dialing 416-640-1917 or 1-877-289-8525 and entering passcode 21252544#. The archived webcast can be accessed by visiting www.certicom.com.

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.

For further information, please contact:

Investors and Financial Analysts:
Hervé Séguin
Chief Financial Officer
Certicom Corp.
(905) 501-3827
hseguin@certicom.com

Media:
John Callahan
Director, Public Relations & Marketing Communications
Certicom Corp.
(703) 234-2357
jcallahan@certicom.com

Except for historical information contained herein, this news release contains forward-looking statements that involve risks and uncertainties. Forward-looking information includes information concerning the Company's future financial performance, business strategy, plans, goals and objectives. When used in such documents, the words "plans", "expects", "budget", "scheduled", "estimates", "forecasts", "intends", "anticipates", "will", "believes" or variations of such words and phrases often, but not always, identify forward looking statements. Factors which could cause actual results or events to differ materially from current expectations include, among other things: the ability of the Company to successfully implement its strategic initiatives and whether such strategic initiatives will yield the expected benefits; the ability of the Company to develop, promote and protect its proprietary technology security breaches or defects in the Company's products; competitive conditions in the businesses in which the Company participates; changes in consumer spending; the outcome of legal proceedings as they arise; general economic conditions and normal business uncertainty; consolidation in the Company's industry and by its customers; customer preferences towards product offerings; the risk that customers may cancel their contracts with the Company; reliance on a limited number of customers; demand for ECC-based technology; performance of the Company's management team and the Company's ability to attract and retain skilled employees; operating the Company's business profitably; fluctuations in revenue and foreign currency exchange rates; interest rate fluctuations and other changes in borrowing costs; the ability to develop and maintain strategic relationships; and other factors identified under the heading "Risk Factors" in the Company's annual information form dated July 26, 2007 and filed on SEDAR at www.sedar.com. While the Company believes that its forecasts and assumptions are reasonable, results or events predicted in this forward-looking information may differ materially from actual results or events. In particular but without limitation, there is no assurance that the Company will achieve all or a portion of the goals outlined in its fiscal 2008 business plan within the time limits specified therein or at all.