Stories by: Tim Greene

Network-access-control start-up ConSentry Networks has filled its long-vacant CEO position with Joe Golden, a partner in Accel Partners, a ConSentry investor. Golden was a partner in Accel Partners' London venture-capital office from 2001 until ConSentry hired him; before that he was Cisco's managing director of business development and strategic alliances for Europe, Middle East and Africa. With NAC in flux and with some start-ups having failed, Golden spoke with Network World Senior Editor Tim Greene about ConSentry, its strategy and the future of NAC.

A bank-card scammer using stolen Citibank account numbers and PINs netted hundreds of thousands of dollars, but was caught because he didn't spend enough on clothes, according to court documents.

Five major network hardware, software and services vendors are banding together to improve IT security by promoting faster responses to threats.

Gigabit Ethernet as a means to connect devices in data centers and storage facilities has earned another proof point -- a computing cluster in Germany that is linked by Gigabit Ethernet and that has ranked number 58 overall for performance among the top 500 supercomputing sites in the world.

VoIP customers of Avaya, Cisco and Nortel should look Wednesday for patches that correct newly found vulnerabilities that, if exploited, can result in remote code execution; unauthorized access; denial of service; and information harvesting.

Riverbed is teaming up with OpNet to give customers greater insight into what's happening on the WAN so they can better plan for bandwidth and resolve service-level agreement issues more quickly with service providers.

Carefully managed virtual servers can make the job of attackers more difficult by reducing the time that any one version of a server is exposed to the Internet, according to a George Mason University professor who has developed software that phases virtual servers in and out of use.

Business customers, get ready for Juniper 2.0 -- more integrated network features and new support packages.

Juniper Networks is about to introduce new phone-home support services to discover and resolve security and performance incidents for customers. The company's goal is to help customers resolve problems faster -- and avoid troubles in the first place.

HP is announcing the first upgrade to Web-application security-testing software it acquired last year with the purchase of SPI Dynamics.

Juniper Networks has some work to do selling network gear to businesses if it wants to meet the profit expectations of Wall Street, analysts say.