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 and TORONTO, Oct. 11 -- Diversinet Corp. (OTC Bulletin Board: 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(TM) 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.

    About Diversinet
    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 more than 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 http://www.openauthentication.org. Connect with
Diversinet Corp. at http://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 http://www.symbian.com or email
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    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.