Arbor Networks Names Tina Stewart Vice President of Marketing; Former Network Associates Executive to Grow Arbor's Brand in the Enterprise.

LEXINGTON, Mass. -- Arbor Networks(R), a leader in network security, today announced the appointment of Tina Stewart as the company's vice president of marketing. A successful and seasoned leader, Stewart joins Arbor Networks to further the company's corporate and product marketing position in securing the world's most critical networks. Arbor Networks, which ended 2004 cash flow positive, is entering into its fifth straight year of continuous sales growth.

"Arbor Networks' customers rely on their networks to deliver competitive advantage. Security breaches, DDoS attacks, and network integrity issues impact their business and ability to execute," said Jack Boyle, chief executive officer of Arbor Networks. "We are focused on delivering solutions that assure the security and operational performance of enterprise and service provider networks, and we have recruited the best marketing executive to accelerate Arbor's business success."

Stewart will direct Arbor Networks' worldwide product marketing and corporate marketing activities. Stewart has been active in the security, networking and telecommunications industries for nearly 20 years and has a strong understanding of the network security and network management market. She has served in executive roles at Network Associates, Sniffer Technologies and Technology Information Strategies.

"Arbor represents a great opportunity to work with best-in-breed network security solutions and a world-class roster of customers, partners and employees," said Tina Stewart, vice president of marketing of Arbor Networks. "Joining Arbor Networks' team of seasoned management and security experts will provide me with an opportunity to build and grow upon an already strong foundation in the enterprise and service provider markets."

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. For more information, go to www.arbornetworks.com.