3GSMWORLD CONGRESS, BARCELONA, FEB. 13, 2006 - Oberthur Card Systems, one of the world's leading smart card manufacturers for banks and wireless operators worldwide, and Diversinet Corp. (OTCBB: DVNTF), a leading provider of mobile-enabled personal authentication and security solutions, today announced the demonstration of a SIMbased authentication solution designed to address the market for strong end-user authentication over the Internet.

The demonstration will be held at the Oberthur Card Systems' booth at the 3GSM World Congress (Hall 8 - Booth B34) from the 13th to the 16th of February 2006 at Fira de Barcelona, Spain.

Diversinet and Oberthur Card Systems intend to support Internet and security providers' business needs for cost-effective, mass-market strong authentication solutions. The use of SIM-based tokens eliminates the need for consumers and corporate users to carry additional hard tokens, USB toggles or specific smart card readers, since most have a mobile phone handy at all times. With this solution, Diversinet and Oberthur Card Systems deliver the industry's most advanced mobile security service to provide OATH-compliant One-Time Password authentication on all GSM/UMTS mobile phones and networks worldwide.

"With mobile devices becoming ubiquitous worldwide, partnering with Oberthur Card Systems to reach wireless operators and financial services makes strategic sense," said Nagy Moustafa, CEO of Diversinet. "We look forward to working closely with Oberthur Card Systems to market a strong, two-factor authentication solution that will help wireless customers protect their online banking and other online transactions."

"By joining forces with Diversinet, Oberthur Card Systems turns any GSM/UMTS handset into a SIM token reader, thereby opening up mass market deployment of security services," said Alain Jarre, mobile marketing and solutions director at Oberthur Card Systems.

"Through this partnership, Oberthur Card Systems continues to add valuable services to its SIMphonIC product range, and reinforces its commitment to delivering security-related products and services to our customers worldwide."


The Private Securities Litigation Reform Act of 1995 provides a "safe harbor" for forwardlooking statements. Certain information included in this press release (as well as information included in oral statements or other written statements made or to be made by the company) contains statements that are forward-looking, such as statements relating to anticipated future revenues of the company and success of current product offerings. Such forwardlooking information involves important risks and uncertainties that could significantly affect anticipated results in the future and, accordingly, such results may differ materially from those expressed in any forward-looking statements made by or on behalf of the company. For a description of additional risks and uncertainties, please refer to the company's filings with the Securities and Exchange Commission.



About Oberthur Card Systems

With sales of 500.8 million Euros in 2005, Oberthur Card Systems is one of the world's leading providers of card-based solutions, software and applications including SIM and multiapplication smart cards as well as services ranging from consulting to personalization.

Innovative products, security expertise and high quality services ensure Oberthur Card Systems' strong positioning in its main target markets:

• Payment & Services: 53 percent of 2005 revenues. World leader and number-one supplier of Visa and MasterCard payment cards
• Mobile Communications: 32 percent of 2005 revenues, with open and interoperable solutions based on JavaT technology.
• Identity: strong positions in ID projects throughout the world
• Multimedia: leading position in the Pay-TV market with an end-to-end expertise in the value chain: software development, manufacturing and personalization
• Transit: focus in the high-end segment with a microprocessor-based offer

Close to its customers, the company benefits from an industrial and commercial presence across all five continents. Listed on the Euronext Stock Exchange (ISIN: FR0000124133) since July 2000, Oberthur Card Systems is a subsidiary of the François-Charles Oberthur Group. For more information, visit www.oberthurcs.com.