A new VoIP threat - steganography

IEEE Spectrum published an article about three techniques for hiding information in VoIP calls, thus showing again that bits are bits.

Hiding secret messages in MP3 or video files has been done for many years. From the bad guys perspective, there is the problem that copies of these files are left on many servers when they are transmitted by email for example, and therefore can be investigated after the actual transmission is completed. 

Hiding information in the VoIP protocol itself leaves nothing behind to be investigated.

Comments

[voip providers]

There are several advantages using VoIP including the availability of advanced features that standard telephone systems are not capable of and the ability to have a phone number usually associated with a particular local area anywhere in the world.

[Bill Frank]

I certainly understand the value of innovation in general and specifically VoIP. My point is that every innovation in Information Technology creates new security and compliance risks that must be addressed.