CERTICOM CORP. COMPLETES $15-MILLION PUBLIC OFFERING

Mississauga, Ontario (November 28, 2003) – Certicom Corp. (TSX: CIC) today announced that it has successfully completed its previously announced public offering of 5,357,142 common shares at a price of $2.80 per share, raising gross proceeds of $15.0 million.

Certicom will use the net proceeds from the offering, which was over-subscribed, for working capital and general corporate purposes.

“The market response to this offering in Canada as well as the U.S. was exceptionally strong, reflecting the investment community’s long-term confidence in Certicom’s strategy, opportunities and growth potential,” said Ian McKinnon, President and Chief Executive Officer. “We have significantly strengthened the company’s financial foundation to support our continuing aggressive pursuit of profitable growth.”

TD Securities Inc. and Research Capital Corporation served as underwriters for the offering.

About Certicom
Certicom is a leading provider of wireless security solutions, enabling developers, governments and enterprises to add strong security to their devices, networks and applications. Designed for constrained devices, Certicom's patented technologies are unsurpassed in delivering the strongest cryptography with the smallest impact on performance and usability. Certicom products are currently licensed to more than 300 customers including Texas Instruments, Palm, Research In Motion, Cisco Systems, Oracle and Motorola. Founded in 1985, Certicom is headquartered in Mississauga, ON, Canada, with offices in Ottawa, ON; Herndon, VA; San Mateo, CA; and London, England. Visit www.certicom.com.

Certicom, Security Builder, Security Builder Crypto, Security Builder SSL, Security Builder PKI, Security Builder GSE, movianVPN, movianCrypt and movianMail are trademarks or registered trademarks of Certicom Corp. All other companies and products listed herein are trademarks or registered trademarks of their respective holders.

Forward-Looking Statements
Except for historical information contained herein, this news release contains forward-looking statements that involve risks and uncertainties. Actual results may differ materially. Factors that might cause a difference include, but are not limited to, those relating to the acceptance of mobile and wireless devices and the continued growth of e-commerce and m-commerce, the increase of the demand for mutual authentication in m-commerce transactions, the acceptance of Elliptic Curve Cryptography (ECC) technology as an industry standard, the market acceptance of our principal products and sales of our customer's products, the impact of competitive products and technologies, the possibility of our products infringing patents and other intellectual property of fourth parties, and costs of product development. Certicom will not update these forward-looking statements to reflect events or circumstances after the date hereof. More detailed information about potential factors that could affect Certicom's financial results is included in the documents Certicom files from time to time with the Canadian securities regulatory authorities.

The shares of the company described above have been offered only to qualified institutional buyers in reliance on Rule 144A under the Securities Act of 1933, as amended (the "Securities Act"), and outside the United States pursuant to Regulation S of the Securities Act. The shares have not been registered under the Securities Act and may not be offered or sold in the United States or to a U.S. Person absent registration or an applicable exemption from registration requirements.

This press release does not constitute an offer to sell or the solicitation of an offer to buy any security and shall not constitute an offer, solicitation or sale in any jurisdiction in which such offering would be unlawful.

For further information, please contact:
Certicom Corp.
Hervé Séguin, Chief Financial Officer
(905) 501-3827
hseguin@certicom.com