Bedford, MA— RSA Security Inc. (NASDAQ: RSAS), the most trusted name in e-security®, today announced that its RSA BSAFE® Crypto-C encryption software will be available in the next 30 days to help developers create secure applications for IBM's OS/390 version 2.8 software. RSA Security's encryption software for the OS/390 environment allows businesses running mainframe environments to take advantage of the same information security technology available for the desktop and server markets.

IBM mainframe customers can take advantage of RSA Security's market-leading RSA BSAFE encryption software, significantly improving security for e-business applications that require the distribution of critical information internally and over the Web. RSA Security helps IBM customers to protect data from the beginning of a transaction all the way to their back-end IBM data and transaction servers.

"One of our goals is to allow developers to secure applications with confidence," said Bill McQuaide, vice president of product marketing at RSA Security. "As RSA Security is now compatible with IBM's OS/390, we are reaching out to a new market enabling developers to create innovative, secure applications in large-scale computing environments. With more than one billion RSA BSAFE-enabled applications being used worldwide to build strong encryption and authentication, RSA BSAFE Crypto-C encryption software is clearly the software developer's tool of choice for security."

The RSA BSAFE line of security software is embedded in today's most successful Internet applications, including Web browsers, wireless devices, commerce servers, operating systems, e-mail systems and virtual private network products. Built to provide implementations of standards such as SSL, S/MIME, WTLS, IPSec and PKCS, RSA BSAFE products can save developers time and risk in their development schedules.

About IBM
IBM is a leader in creating, developing and manufacturing the industry's most advanced information technologies, including computer systems, software, networking systems, storage devices and microelectronics. The company translates these advanced technologies into value for customers through our professional solutions and services businesses worldwide.

About RSA Security Inc.
RSA Security Inc., the most trusted name in e-security, helps organizations build secure, trusted foundations for e-business through its RSA SecurID® two-factor authentication, RSA ClearTrust® authorization, RSA BSAFE encryption and RSA Keon® digital certificate management product families. With more than one billion RSA BSAFE-enabled applications in use worldwide, more than ten million RSA SecurID authentication 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 online economy. RSA Security can be reached at www.rsasecurity.com.