Peter Cox
Articles by Peter Cox
Skype for SIP, an answer to the IT manager’s prayer?
In a move that for the first time sees Skype embrace open standards, the company has announced the start of a beta program for a Skype/SIP Gateway, called...
INVITE of death, does this spell doom for VoIP?
The last couple of weeks have seen two significant VoIP vulnerability reports. The first, with the alarming name INVITE of Death, reported a vulnerability in...
SIP Trunk Authentication, who needs it?
Judging from my recent experience, at least one North American SIP trunk provider has not understood the importance of SIP authentication. While working on a...
VoIP toll fraud: Could it happen to me?
In my last column, I highlighted the plight of an Australian company where inadequate security controls lead to an expensive toll fraud attack. The real...
VoIP toll fraud attack racks up a £57K bill in two days
A recent report from the Australian press relates the story of a Perth company where hackers made 11,000 calls via the company’s VoIP running up a...
Keeping it secret: VoIP call encryption
In my last column (21st Century Phone Tapping), I discussed the problem of unauthorised eavesdropping on VoIP calls. This column looks at some...
21st Century Phone Tapping
Forget the spy movies where, the hero or villain climbs telephone poles, carefully attaching crocodile clips to listen in on that critical phone call, VoIP...
VoIP Security, the elephant in the room?
This is the first a regular series of articles examining and commenting on Voice over IP (VoIP) security issues. VoIP is now established as a mainstream...
