Arbor Networks to Discuss Fingerprint Sharing at RIPE 50 Conference; Danny McPherson to Address New Strategies for Fingerprint Sharing, Traffic Anomaly Detection, DDoS Mitigation.

Arbor Networks

WHAT:    Traffic Anomaly Detection, DDoS Mitigation, Coordinated
         Attack Fingerprinting; the Fingerprint Sharing Alliance

WHO:     Danny McPherson, senior director, business development, Arbor
         Networks

         With extensive technical leadership in the telecommunications
         and computer networking industry, Danny oversees business
         development and partnering activities, and also contributes
         to Arbor's overall strategy and product architecture.
         Prior to joining Arbor, Danny was Director of Emerging
         Technology at Amber Networks. He has more than a decade of
         experience in the networking and security operations space,
         serving as network architect for global Internet Service
         Providers such as Qwest, MCI and Genuity.

         Danny is a common contributor within the Routing, Operations,
         and Internet Areas of the IETF and global network operations
         community, and is active within VPN & MPLS standardization
         and deployment effort. Danny currently chairs the Internet
         Engineering Task Force (IETF), PWE3 Working Group and is a
         member of several IETF Area directorates and Internet
         research groups. He is also a member of the FCC's Network
         Reliability and Interoperability Council (NRIC) and the
         MPLScon Advisory Board. He has authored a significant number
         of Internet protocol standards, research papers, books and
         other documents related to Internet routing protocols,
         network security, Internet addressing and network operations.
         His most recent book, Practical BGP, was published in 2004.

WHEN:    Tuesday, May 3, 2005
         12:00pm (Stockholm)

WHERE:   RIPE 50 Meeting, May 2-6, 2005, is a 5-day event where
         members of Internet service providers, network operators
         and other interested parties from Europe and the
         surrounding regions gather. Clarion Hotel Stockholm,
         Sweden

WHY:     -- Distributed denial-of-service (DDoS) attacks, worms, and
            other cyber attacks can paralyze networks for days,
            costing millions of dollars in lost sales, freezing online
            services and crippling a company's reputation.
            Hacker-controlled botnets can be used to attack a Web site
            or network on command, requiring little effort to knock a
            company off-line. Resolving these threats across service
            provider networks is reactive and relationship-driven,
            consisting of a combination of phone calls and emails
            between colleagues.
         -- Attack resolution requires real-time cooperation and
            coordination between service providers to identify a
            compromised or infected system as close to the absolute
            Internet ingress as possible.
         -- Fingerprint Sharing delivers multiple benefits for service
            providers and service providers' customers - large
            enterprises, small businesses, and residential Internet
            connections. All benefit from the faster and more
            effective response to attacks by their providers.

ABOUT ARBOR NETWORKS Arbor Networks ensures the security and operational integrity of the world's most critical networks. Arbor's solutions are based on the proven Peakflow platform, intelligent technology for network-wide data collection, analysis, anomaly detection, and threat mitigation. Peakflow provides real-time views of network activity enabling organizations to instantly protect against worms, DDoS attacks, insider misuse, and traffic and routing instability as well as segment and harden networks from future threats. Peakflow successfully prevents costly downtime, network cleanup, and loss of customer confidence. Arbor is headquartered in Lexington, MA, with a research and development office in Ann Arbor, MI and overseas headquarters in London and Beijing.