Press Release: Leading Email & Data Encryption Vendor

New Information Security Study Rates PGP Corporation the Lead Vendor in Email and Data Encryption Software

Results from TheInfoPro's Study of more than 250 Enterprise Security Managers Confirm PGP Corporation's Reputation as One of the Most Trusted Brands Among Security Industry Giants

Palo Alto, CA/21 November, 2005 – PGP Corporation, a global leader in enterprise data security and encryption solutions, today announced that the latest Information Security Study conducted by TheInfoPro (TIP), an independent research network and leading supplier of market intelligence for the information technology industry, rated PGP Corporation as the lead vendor in use for both email and data encryption software. PGP Corporation was ranked second, behind only Cisco Systems, as the vendor security managers cited they are either currently using or considering for new security infrastructure implementations.

The study of information security professionals from North American Fortune® 1000 and mid-sized enterprises, major government agencies, and leading academic institutions includes implementation planning, spending plans, vendor ratings, and commentary on products in 40 information security technology categories, including use of email and data encryption software to provide infrastructure security. End users cited in the study represented some of the world's most popular brands, including Advanced Micro Devices, AOL Time Warner, The Bank of New York, Citigroup, Dow Corning, Eastman Kodak, FedEx, Honeywell, JPMorgan Chase, Kimberly Clark, McKesson, PepsiCo, and Toyota. Vendors rated in the study included Cisco Systems, Juniper Networks, Microsoft, Sun Microsystems, Symantec, and other leading information security vendors.

"This third-party study confirms the marketplace sees PGP Corporation as a well-established company that provides special value to security managers," said Andrew Krcik, vice president of marketing for PGP Corporation. "Being recognized as one of the most widely used vendors of choice in today's security infrastructure market will serve us well as we continue to expand our encryption portfolio."

Key findings of the TIP study also showed that PGP Corporation is the leading vendor in use in the data encryption software business, ahead of much larger companies such as Microsoft. Both data and email encryption were priorities for security managers, according to the study. Ranked as the leader in serving both these markets, PGP Corporation far outpaced all other competitors.

"PGP Corporation receives recognition and high marks for its leadership in the encryption software business," said Henry D. Nisenbaum, managing director for information security research at TheInfoPro. "Security managers across a number of vertical industries—consumer goods/retail, education, energy and utilities, financial services, health care, manufacturing, telecommunications, and technology—told us that PGP Corporation provides industrial-strength encryption that is easy to use."

About TheInfoPro
New York City-based TIP (TheInfoPro) investigates key technology sectors in six month intervals or "Waves" by interviewing hundreds of decision makers, pre-screened for domain expertise, for an average of one hour. Known as the "voice of the customer", thousands of IT professionals, technology providers, and institutional investors rely on TIP research for robust vendor spending and ratings data, technology adoption overlaying vendors poised to benefit, and rich narrative commentary. TIP studies the Storage, Information Security, Networking, and Server markets. Over 800 technology decision makers are members of the TIPNetwork, including J.P. Morgan Chase, Reed Elsevier, FedEx, MetLife, Merck, Cargill, and MasterCard. To learn more about TIP's independent, objective research process where results are delivered without any analyst spin or bias visit, www.TheInfoPro.net.

About PGP Corporation
The global customer standard for encryption and digital signature solutions, PGP Corporation develops, markets, and supports an integrated data security suite used by more than 30,000 enterprises, businesses, and governments worldwide, including 84% of the Fortune® 100, 66% of the Fortune® Global 100, and thousands of individuals and cryptography experts. Customers depend on PGP solutions for regulatory and audit compliance, to protect confidential company information, to secure customer data, and to keep identity information private.

During the past 10 years, PGP® technology has earned a global reputation for innovative, standards-based, trusted solutions. The flexible PGP suite allows customers to phase-in gateway, partner, mobile or internal email security; data storage protection for laptops, desktops, and removable media; IM encryption; and FTP/batch transfer security using a single key management and recovery infrastructure. PGP Corporation is the only commercial security vendor to publish source code for peer review. Contact PGP Corporation at www.pgp.com or +1 650 319 9000.

Legal Notice Regarding Forward-Looking Statements
Some of the statements in this press release are forward-looking, including statements regarding the availability, plans, delivery, goals, development, expected features, expected benefits and competitive position of PGP products implementing or leveraging the PGP technologies. All references made to product feature enhancements, improvements in platform support or additional functionality are subject to change at solely PGP Corporation's discretion. All future descriptions of PGP technology and products are subject to availability only if PGP Corporation decides to build them and when PGP Corporation decides to make them commercially available. Actual results could differ materially from those expressed in any forward-looking statements. Risks and uncertainties that PGP Corporation faces that could cause results to differ materially include risks associated with any unforeseen technical difficulties or software errors related to the final development and launch of any of PGP Corporation's products; any technological or standards changes in the security, encryption and authentications market which could make PGP Corporation's products less competitive or require feature changes in these products; any slowdown in the adoption by businesses of encryption suites, secure email, Internet technologies or related standard. The forward-looking statements contained in this release are made as of the date hereof, and PGP Corporation does not assume any obligation to update such statements nor the reasons why actual results could differ materially from those projected in such statements.

PGP and the PGP logo are registered trademarks of PGP Corporation. Product and brand names used in the document may be trademarks or registered trademarks of their respective owners. Any such trademarks or registered trademarks are the sole property of their respective owners.