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Cisco's Security Spree Continues: Page 2 of 3

Riverhead’s products protect online operations from DDOS attacks by detecting and blocking malicious traffic without impinging on legitimate business transactions.

In January, Riverhead unveiled two new products -- the Riverhead Guard XT and the Riverhead Detector XT -- which aim to provide protection against the most sophisticated DDOS attacks. The Detector XT monitors traffic flows and alerts Guard XT, which diverts traffic addressed to the target (see Riverhead Unveils Anti-DDOS Stuff).

There has been growing speculation recently over which security companies were next on Cisco’s shopping list, as the equipment giant focuses on expanding its intrusion detection and protection product portfolio.

The company snapped up Psionic Technologies Inc. in December 2002 and completed the buy-out of network security software firm Okena last year (see Cisco Buys Psionic and Cisco Completes Okena Buy).

More recently, Cisco announced plans to buy security software vendor Twingo Systems Inc. for $5 million in cash, a move that is also expected to increase price competition in the SSL VPN marketplace (see Cisco: It Takes Two to Twingo).