INTERNET SECURITY SYSTEMS RELEASES 98 NEW SECURITY RISK DEFINITIONS.

Internet Security Systems (Nasdaq: ISSX) (ISS) has announced the availability of 98 new security risk definitions included in four separately released X-Press Updates to its award-winning SAFEsuite(R) security management software platform. Based on ISS' world-leading X-Force security research and development team findings, X-Press updates contain new, automatically downloadable security risk definitions -- or the latest ways to detect newly uncovered security vulnerabilities and threats -- that in turn enable ongoing e-business infrastructure protection.

Newly available X-Press Updates for ISS' SAFEsuite network and host-based security assessment solutions, Internet Scanner, and System Scanner, provide customers the ability to detect the latest security vulnerabilities or weaknesses in security operating systems, applications and network devices. ISS' has also released two new X-Press Updates for its intrusion detection system, RealSecure, adding new security risk definitions for detecting and responding to security threats including the latest distributed denial of service attacks and backdoor programs.

Internet security risks have increased exponentially over the last three years. In 1997, the ISS X-Force researched 58 high security risks. By 1999, this number had more than quadrupled reaching a total of 253 high security risks, an average of 30 to 40 researched per month. In 2000, the number of high security risks has continued to grow at breakneck speeds with the X-Force currently engaged in active research of approximately 100 security risks per month.

Embedded across ISS' SAFEsuite security management platform, the ISS X-Press Update program delivers instant protection by automatically finding, downloading and installing the latest ISS security risk definitions to ISS' installed base of security assessment and intrusion detection systems.

The three latest SAFEsuite X-Press updates are the newest in ISS' 31 total updates issued since January, 1999. The four newly available updates include: RealSecure Network Sensor X-Press Update 1.3, RealSecure Operating System Sensor X-Press Update 1.1, Internet Scanner X-Press Update 4.3, and System Scanner X-Press Update 2.1. X-Press Updates are available at the ISS online download center located at http://www.iss.net/eval/eval.php. Customers can download X-Press Updates using the X-Press Update Installer program that is available with each respective SAFEsuite product. Complete descriptions for all of ISS' 31 X-Press .

X-Press Updates are provided by the ISS X-Force, the world's leading full- time security team dedicated to researching, discovering, reporting and preventing network and Internet security vulnerabilities and threats. The ISS X-Force provides customers with the tactical intelligence they need to adapt quickly to online threats that can make or break a business. The X-Force serves the security community as the world's most respected authority on network protection and routinely issues security alerts and advisories, and summaries detailing the latest security risks.

Internet Security Systems (ISS) is a leading global provider of security management solutions for the Internet. By providing industry-leading SAFEsuite(R) security software, remote managed security services, and strategic consulting and education offerings, ISS is a trusted security provider to its customers, protecting digital assets and ensuring safe and uninterrupted e-business. ISS' security management solutions protect more than 6,000 customers worldwide including 21 of the 25 largest U.S. commercial banks, the top 10 telecommunications companies and more than 35 government agencies. Founded in 1994, ISS is headquartered in Atlanta, GA, with additional offices throughout North America and international operations in Asia, Australia, Europe, Latin America and the Middle East.