  In this paper a new information hiding method for Skype videoconference calls
- YouSkyde - is introduced. A Skype traffic analysis revealed that introducing
intentional losses into the Skype video traffic stream to provide the means for
clandestine communication is the most favourable solution. A YouSkyde
proof-of-concept implementation was carried out and its experimental evaluation
is presented. The results obtained prove that the proposed method is feasible
and offer a steganographic bandwidth as high as 0.93 kbps, while introducing
negligible distortions into transmission quality and providing high
undetectability.
