VoIP - the next malware battleground

This article provides an interesting analysis of the relative state of immaturity of today's VoIP products and technologies, and illustrates the type of vulnerabilities that malware will undoubtedly seek to exploit. The lesson here is: the unquestioning trust we have in PSTN telephony, developed over decades of use, means we are ill-prepared for the brave new world of IP telephony. This is suitably illustrated by the following sound-bites:

"Researchers found more than 100 design or implementation flaws in products from Avaya, Nortel Networks and Cisco Systems that could allow outsiders to execute code on handsets, PCs or servers; compromise systems; block service; or steal accounts."

"It's only a matter of time until IP telephony is hit by spam and malware, experts say."