COLT Expands Range Of Security Services

— June 26, 2001 — COLT Telecom Group plc (COLT) is set to offer Europe’s e-businesses an online service that provides comprehensive, on-demand 24x7 security audits and vulnerability assessments. Launching today in Zurich, Switzerland, following a successful implementation in France, the easy-to-use facility identifies, analyses, and reports on customer IP network devices and security threats, all over the Internet, and will be rolled out through COLT’s other European countries during 2001.

Called COLT InterSecure Scan, the new service is offered as a result of a collaboration with a leading provider of enterprise network vulnerability assessment and monitoring solutions, Qualys.

“Ensuring robust network security should be high on the list of priorities for organisations aspiring to incorporate the Internet into the heart of their business model,” says Rob Mainor, COLT Internet’s Managing Director. “The collaboration with Qualys demonstrates COLT’s commitment to ensuring that each of our customers can benefit from the continuous audit of their networks to detect security vulnerabilities and assess risks. As such, it perfectly illustrates the new standards for secure and resilient Internet offerings that COLT continues to set.”

COLT InterSecure Scan is based on a unique, online global vulnerability scanning platform developed by Qualys that uses over 900 specific node tests to analyse networks from the outside-in, as a potential intruder would do, uncovering security gaps that would be difficult to detect from a traditional inside-out perspective. The service audits graphically maps and clearly describes security risks and suggested possible solutions.

“COLT is perfectly placed to partner Qualys in Europe,” says Philippe Courtot, chairman and CEO of Qualys. “Their high-performance, pan-European network hosts on of Europe’s most comprehensive offering of managed e-services - ideal for e-businesses. As COLT understands, effective protection against network intrusion demands on-going surveillance and preservation of the network infrastructure. The new-generation Qualys platform gives COLT’s customers the ability to check their networks against a continuously updated database of known threats as frequently as they need”.

About COLT

OLT Telecom Group plc is a leading provider of high bandwidth data, voice and advanced telecommunication services to business and governmental customers in Europe. It currently has operations in 27 European cities in eleven countries, and plans to be providing services in 32 cities by the end of 2001. In addition COLT provides Internet connectivity, Internet hosting and enables application services in 10 European countries, with a backbone reaching into the US and more than 450 peering agreements. COLT Internet Solution Centres (ISCs) have been built in 13 cities totalling more than 800,000 square feet (74,000 square metres) of hosting space. During the year ended December 2000, COLT’s turnover was £640.8 million and it carried 15.8 billion switched minutes of traffic. During the quarter ended March 2001, COLT’s turnover was £209.4 million. At March 31, 2001, COLT had installed 3,442 route kilometres of fibre-optic cables in its city-networks, provided 10.2 million private wire voice grade equivalents, and had 6,298 buildings connected to its networks. COLT Telecom Group plc is listed on the London Stock Exchange (CTM.L) and Nasdaq (COLT). Information about COLT and its products can be found on the World Wide Web at www.colt.net.

About Qualys

With more than 2,000 subscribers ranging from small businesses to multinational corporations, Qualys has become the leader in on demand vulnerability management and policy compliance. The company allows security managers to strengthen the security of their networks effectively, conduct automated security audits and ensure compliance with internal policies and external regulations. Qualys’ on demand technology offers customers significant economic advantages, requiring no capital outlay or infrastructure to deploy and manage. Its distributed scanning capabilities and unprecedented scalability make it ideal for large, distributed organisations. Hundreds of large companies have deployed Qualys on a global scale, including AXA, DuPont, Hershey Foods, ICI Ltd, Novartis, Sodexho, Standard Chartered Bank and many others. Qualys is headquartered in Redwood City, California, with European offices in France, Germany and the U.K., and Asian representatives in Japan, Singapore, Australia, Korea and the Republic of China. For more information, please visit www.qualys.com.

Qualys, the Qualys logo and QualysGuard are proprietary trademarks of Qualys, Inc. All other products or names may be trademarks of their respective companies.

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