VoIP vulnerabilities increasing, but not exploits

The threats against VoIP are numerous and seem to be growing, but in 2008 the technology probably won't suffer crippling attacks.

The potential danger is very real. VoIP is susceptible to the many exploits that networks generally are heir to -- denial of service, buffer overflows and more. VoIP PBXs are servers on corporate networks and are only as secure as the networks themselves.

Read more about this here.