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December 29, 2008  3:03 PM

Protecting VoIP Against Three Common Threats



Posted by: Tony Bradley
Denial-of-Service, DoS, Spam over Internet Telephony, SPIT, toll fraud, voice, VoIP, VoIP security

There are a number of way, theoretically, that a VoIP communications system could pose a security risk to an enterprise. Let's face it, while the network administrators have been in the trenches fighting unauthorized access, malware infections, data compromise, and more on a daily basis for the...

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November 14, 2008  2:29 PM

VoIPshield Finds Flaws With Microsoft UC



Posted by: Tony Bradley
Denial-of-Service, DoS, media channel, Microsoft, RTP, SIP, UC, Unified Communications, VoIP security, VoIPshield

VoIPshield, a VoIP security solutions company based in Ottawa, Canada, recently discovered vulnerabilities affecting the RTP (Real-time Transport Protocol), a standard data format used for delivery of audio and instant messaging packets over the Internet. Microsoft Office Communications Server...

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June 30, 2008  4:29 PM

Cisco Unified Communications Vulnerability



Posted by: Tony Bradley
Cisco, Cisco Unified Communications Manager, Denial-of-Service, DoS, Secunia, vulnerability

Security vulnerability research firm Secunia reports "A vulnerability and a security issue have been reported in Cisco Unified Communications Manager, which can be exploited by malicious people to bypass certain security restrictions or to cause a...

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