DIVERSINET INTRODUCES TWO-FACTOR AUTHENTICATION MULTI-TOKEN WALLET FOR SYMBIAN OS PHONES

MobiSecure Token Wallet Provides Businesses with a New Tool to Combat Online Fraud and Eliminates the Need for Consumers to Carry Multiple Tokens

The Symbian Smartphone Show LONDON, UK, and TORONTO, ON - October 11th, 2005 - Diversinet Corp. (OTCBB: DVNTF), a leading provider of mobile-enabled personal authentication and security solutions today announced at the Symbian Smartphone Show the release of the industry’s first OATH-compliant multi-token wallet available for Symbian OS™ mobile phones. Diversinet’s MobiSecure Token Wallet allows consumers to load as many strong authentication credentials as they need into their Symbian OS mobile phones, eliminating the need to carry a variety of strong authentication tokens to access their bank accounts, enterprise networks and online communities.

“By combining the full OATH-compliant functionality of MobiSecure with the industry-leading Symbian OS, consumers, enterprises and service providers can now economically add strong authentication protection to electronic communications and commerce applications without having to carry and manage multiple tokens,” says Kashif Hassan, President of Diversinet. “Everyone always remembers to take their wallet, keys and mobile phone with them. Why would anyone want to carry around a bunch of different tokens when they could use their mobile phone as a token wallet for online access? Our MobiSecure Token Wallet is a simple, convenient identity protection utility built for mass-market consumer strong authentication services.”

The number of Symbian OS phones in the market is growing rapidly as more than 200 carriers worldwide sell more than 50 Symbian OS-based models from all the world’s leading handset makers. More than 14 million Symbian OS phones were shipped in the first half of this year alone, a year on year growth rate of 190%, taking the installed base of Symbian OS phones to almost 40 million phones. According to technology analyst firm Canalys, overall global shipments of smartphones are up 105% year on year in Q2 2005 with Symbian OS as the clear market leader.

The MobiSecure Token Wallet is built on Diversinet’s mobile-optimized cryptographic and credential management core libraries bound to the highly-complex interfaces integrated within Symbian OS security elements and APIs. The MobiSecure Token Wallet and its multiple credentials are securely provisioned Over-The-Air (OTA) and managed by Diversinet’s MobiSecure Authentication Service Center.

The Diversinet MobiSecure Token Wallet is available for Symbian OS Series 60 Platform mobile devices manufactured by Nokia, Samsung, Panasonic and other leading mobile device vendors and will be available in early 2006 for additional Symbian OS operating environments.

Note to Editors: Diversinet's Vice President, Channel Development Gunnar Svahn is available for one-on-one interviews during the Symbian Smartphone Show in London, October 11-13, 2005. For more information, please contact Patrick Corman at +1-650-326-9648 or e-mail patrick@cormancom.com

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About Diversinet (OTCBB: DVNTF)

Diversinet is a leading provider of mobile-enabled personal authentication and security solutions for consumer and enterprise applications. Diversinet products and services protect a user’s identity, data and device for personal communications and commercial transactions. Diversinet’s MobiSecure soft token and MobiSecure Authentication Service Center enable application providers, mobile network operators and security service providers to rapidly develop, deploy and manage secure on-line services for the over 2 billion mobile device and PC users worldwide. MobiSecure is the industry’s first open mobile security platform to support OATH-compliant strong authentication on mobile devices and personal computers. For more information about the initiative for Open AuTHentication (OATH) visit www.openauthentication.org. Connect with Diversinet Corp. at www.diversinet.com.

About Symbian

Symbian is a software licensing company that develops and licenses Symbian OS, the global open industry standard operating system for advanced, data-enabled mobile phones. Symbian licenses Symbian OS to the world’s leading handset manufacturers and has built close co-operative business relationships with leading companies across the mobile industry.  In the first half of 2005, more than 14.5 million Symbian OS-based mobile phones were sold worldwide to over 200 network operators, taking the installed base of Symbian OS phones to more than 39 million. Symbian has its headquarters in London, United Kingdom with offices in the United States, Europe (Cambridge, UK and Ronneby, Sweden (UIQ Technology AB), Israel and Asia (Bangalore, Beijing, Seoul and Tokyo). For further information about Symbian please see www.symbian.com or email press@symbian.com.


The Private Securities Litigation Reform Act of 1995 provides a "safe harbor" for forward-looking 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 forward-looking 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.

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Contacts:

Wally Kowal
Vice President, Marketing
Diversinet Corp.
416-756-2324 ext. 231
wkowal@diversinet.com

Patrick Corman
Principal
Corman Communications
+1-650-326-9648
patrick@cormancom.com