CERTICOM TO HOLD FOURTH QUARTER AND YEAR END FISCAL 2003 CONFERENCE CALL

Mississauga, Ontario (May 30, 2003) --- Certicom Corporation (TSX: CIC), a leading provider of wireless security solutions, today announced it will hold a conference call and webcast on June 11, 2003 at 5 p.m. (ET) to discuss the company’s fourth quarter and fiscal 2003 financial results.

The call will be hosted by Ian McKinnon, President and Chief Executive Officer; Hervé Séguin, Chief Financial Officer; and Tony Rosati, Vice President, Marketing.

The numbers to call to listen to the teleconference are 416-640-4127 or 1-800-814-4861. Following management’s presentation, there will be a question and answer session for analysts and institutional investors. To access the simultaneous live audio webcast and supporting slides, please visit www.certicom.com. Participants will require Windows Media Player™, which can be downloaded prior to accessing the call.

A taped rebroadcast will be available to listeners following the call until June 18, 2003 at midnight. To access the rebroadcast, please dial 1-877-289-8525 or 416-640-1917 and quote the passcode 21004243.

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, SSL Plus, Trustpoint, WTLS Plus, movian and movianVPN are trademarks or registered trademarks of Certicom Corp. All other companies and products listed herein are trademarks or registered trademarks of their respective holders.

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 our ability to successfully integrate newly-hired professionals into the management team, the ability to realize anticipated cost savings from our consolidation initiatives, the acceptance of mobile and wireless devices and the continued growth of e-commerce and m-commerce, the continued commitment to new security investments on the part of the U.S., Canadian and other governments and government agencies, the continued acceptance by our customers of our subscription license model, our ability to implement our restructuring initiatives and our ability to realize resulting cost savings, 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 Canadian securities regulatory authorities.

For further information, please contact:

Investors and Financial Analysts Media:
Hervé Séguin Brendan Ziolo
Chief Financial Officer Director of Marketing
Certicom Corp. Certicom Corp.
(905) 501-3827 (613) 254-9267
hseguin@certicom.com bziolo@certicom.com