RSA Security and SSH Communications Security Team to Help Advance Internet Security Technologies and Interoperability.

Business Editors/High-Tech Writers

PALO ALTO, Calif. & BEDFORD, Mass.--(BUSINESS WIRE)--Sept. 26,

2000

Companies to Integrate SSH's IPSEC Express Toolkit, IKE and X.509

Certificate Software Tools with RSA Security Solutions

SSH Communications Security (SSH), a world-leading developer of Internet security technologies, and RSA Security Inc. (NASDAQ: RSAS), the most trusted name in e-security(TM), today announced a strategic relationship under which RSA Security has licensed SSH's IPSEC Express Toolkit for IPSec (Internet Protocol Security), IKE (Internet Key Exchange), and X.509 Certificates to expand and enhance its Internet security products. RSA Security and SSH will also work together to promote interoperability between their respective security technologies and products. The companies intend to provide advanced, comprehensive security solutions that offer customers the interoperability, performance and flexibility they demand for secure network communications.

"Security and the e-business readiness of our customers' networks are more important than ever before," said Scott Schnell, senior vice president of marketing for RSA Security. "By integrating SSH's IPSec technologies into our security solutions, we intend to provide our customers with complete security coverage for all their networked, Internet, intranet and extranet applications, and enhance the interoperability of our products."

"Partnering with RSA Security, a leading security software supplier, will help us better meet the business-critical, global security needs for IPSec, IKE and X.509 PKI-based Internet security solutions," said George Adams, president and CEO of SSH, Inc. "We are very pleased to partner with RSA Security as we continue to expand our IP security technology and market leadership toward our vision to provide secure IP communications for users and devices, from wireline to the rapidly emerging wireless Internet applications."

RSA Security software is embedded in today's most successful Internet applications, including Web browsers, wireless devices, commerce servers, e-mail systems, and VPN (Virtual Private Network) products. Built to provide implementations of standards such as SSL (Secure Socket Layer), SMIME (Secure Multipurpose Internet Mail Extension), WTLS (Wireless Transport Layer Security), and PKCS (Public Key Cryptosystem), RSA Security products save developers and users time and risk in their development and deployment programs.

About RSA Security Inc.

RSA Security Inc., The Most Trusted Name in e-Security(TM), helps organizations build secure, trusted foundations for e-business through its RSA SecurID(R) two-factor authentication, RSA BSAFE(R) encryption and RSA Keon(R) digital certificate management systems. With more than a half billion RSA BSAFE-enabled applications in use worldwide, more than seven million RSA SecurID users and almost 20 years of industry experience, RSA Security has the proven leadership and innovative technology to address the changing security needs of e-business and bring trust to the new, online economy. RSA Security can be reached at www.rsasecurity.com.

About SSH Communications Security

Founded in 1995, SSH Communications Security is the world-leading supplier of Internet security software for demanding network security solutions. SSH provides best-of-breed cryptography and authentication technologies for secure Internet communications. SSH IPSEC Express(TM) is the world's leading toolkit for IPSec (Internet Protocol Security), IKE (Internet Key Exchange) and X.509 certificate management system solutions. Since 1997, numerous Internet infrastructure providers, OEMs, and system integrators have licensed SSH IPSEC Express to incorporate high security into their products. These customers include many IT market leaders such as Compaq, Ericsson, Lucent Technologies, Nokia, and Sun Microsystems, among others. The company's SSH Secure Shell application has become the de-facto standard for secure logins, and now has millions of users in over 80 countries. For more information, please visit www.ssh.com.

This press release contains forward-looking statements relating to the integration of SSH's technology with RSA Security's products. Such statements involve a number of risks and uncertainties. Among the important factors that could cause actual results to differ materially from those indicated by such forward-looking statements are operational delays in implementation of the integration, technical difficulties, software bugs and errors, changes in customer requirements and industry standards, technological changes in the computer industry, competitive pressures and the risk factors detailed from time to time in RSA Security's periodic reports and registration statements filed with the Securities and Exchange Commission, including without limitation RSA Security's Annual Report on Form 10-K filed on March 15, 2000 and Quarterly Report on Form 10?Q filed on August 14, 2000.