The researcher behind the five critical Cisco flaws, collectively called CDPwn, talks about why Layer 2 protocols are under-researched when it comes to security vulnerabilities. Researchers on ...

Two years ago, National Commerce Financial turned to Cisco Systems when it wanted to test the waters of Internet telephony. The midsize Memphis, Tenn., bank installed 150 VoIP (voice over Internet ...

Marguerite Reardon started as a CNET News reporter in 2004, covering cellphone services, broadband, citywide Wi-Fi, the Net neutrality debate and the consolidation of the phone companies. Cisco is set ...

Voice over IP (VoIP) is a dream concept that has been a while in the making. The idea of conducting all your telephone calls over the Internet--and avoiding high long distance charges from Telcos in ...

Cisco Systems Inc. confirmed it is possible to eavesdrop on remote conversations using Cisco VoIP phones. In its security response, Cisco says: “An attacker with valid Extension Mobility ...

Cisco IP phones enable you to use voice over Internet protocol, or VoIP, to make calls over an IP network, such as the Internet, and also have the ability to store missed calls in the missed calls log ...

As many as 2 million Cisco devices are susceptible to an actively exploited zero-day that can remotely crash or execute code ...