Internet Security Systems Positioned in Leader Quadrant in Analyst Research Firm's Magic Quadrant Report

Business Wire, Jan 11, 2006

ATLANTA -- Internet Security Systems (ISS) (NASDAQ: ISSX) today announced that technology research firm, Gartner, Inc., has listed the company in the leader quadrant in its Managed Security Services Provider (MSSP) Magic Quadrant* for the second half of 2005. The Gartner Magic Quadrant is a graphical portrayal of vendor performance in a market segment, including categories for leaders, challengers, visionaries and niche players. It is organized based on companies' ability to execute in a space, as well as their completeness of vision in the market. According to Gartner, "leaders are vendors who are performing well today, have a clear vision of market direction and are actively building competencies to sustain their leadership position in the market."

According to the Magic Quadrant report, the managed security services market in North America was $936M in 2004, and Gartner estimates it will reach $1 billion in 2005(1). Gartner also mentions in the report that growth in the MSSP space is increasingly being driven by more outsourcing of basic security operations, with strong focus on firewall management and intrusion detection monitoring, and growing interest in intrusion prevention functions in the future. With intrusion prevention being its flagship technology, ISS believes it is well-positioned in the MSSP space moving forward.

"We believe our positioning in Gartner's MSSP Magic Quadrant highlights the satisfaction of our customers and the positive industry perception of our services," said Rick Miller, vice president of Managed Security Services at Internet Security Systems. "During the second half of 2005, we made multiple advancements in the MSSP market, including our new Vulnerability Management Service and the extension of support and management to additional third-party security products. We feel Gartner's recognition confirms that these enhancements are meeting the needs of our customers."

ISS' Managed Security Services (MSS) offering includes managed firewall and VPN services, managed IDS/IPS, Managed Protection Services, Vulnerability Management Services and consulting. In addition to managing its own security offerings, ISS also supports and manages products from third-party vendors including Check Point, Cisco and Juniper for firewalls and 3Com and McAfee for intrusion prevention, maximizing the value of customers' existing investments.

Also key to ISS' strong managed services offering is the MSS Customer Portal, which provides customers with a complete, real-time view of their security status 24/7/365. The MSS Customer Portal also seamlessly integrates the unique intelligence of ISS' X-Force(R) research and development team, providing customers with expert advice on how to prioritize and alleviate security risks.

Managed Security Services complement ISS' Proventia(R) product line, a multi-layered security solution that provides comprehensive protection from network- and host-based attacks before they impact business assets. For additional information on ISS Managed Security Services, please go to: http://www.iss.net/products_services/services.php.> About Internet Security Systems, Inc.

Internet Security Systems, Inc. (ISS) is the trusted expert to global enterprises and world governments, providing products and services that protect against Internet threats. An established world leader in security since 1994, ISS delivers proven cost efficiencies and reduces regulatory and business risk across the enterprise. ISS products and services are based on the proactive security intelligence conducted by ISS' X-Force(R) research and development team - the unequivocal world authority in vulnerability and threat research. Headquartered in Atlanta, Internet Security Systems has additional operations throughout the Americas, Asia, Australia, Europe and the Middle East. For more information, visit the Internet Security Systems Web site at www.iss.net or call 800-776-2362.

Internet Security Systems is a trademark and X-Force and Proventia are registered trademarks of Internet Security Systems, Inc. All other companies and products mentioned are trademarks and property of their respective owners.

*The Magic Quadrant is copyrighted December 2005 by Gartner, Inc. and is reused with permission. The Magic Quadrant is a graphical representation of a marketplace at and for a specific time period. It depicts Gartner's analysis of how certain vendors measure against criteria for that marketplace, as defined by Gartner. Gartner does not endorse any vendor, product or service depicted in the Magic Quadrant, and does not advise technology users to select only those vendors placed in the "Leaders" quadrant. The Magic Quadrant is intended solely as a research tool, and is not meant to be a specific guide to action. Gartner disclaims all warranties, express or implied, with respect to this research, including any warranties of merchantability or fitness for a particular purpose.

1 - Gartner, Inc., MSSP MQ North America 2H05, Kelly Kavanagh and John Pescatore, December 2005