A network covert channel is a mechanism that can be used to leak information across a network in violation of a security policy and in a manner that can be difficult to detect. Covert channels exist ...

TV detection equipment used to catch suspected licence fee evaders is 'struggling to keep up' with technological changes, an inspection report has revealed. A detailed review into how the BBC runs ...

Malware authors are using a new technique to keep their communications covert and evade detection: abusing the DNS protocol. According to Fidelis Security, DNS command and control (C&C) and DNS ...

Researchers bypass Android security mechanisms and exploit smartphone cellular voice channel to act as a new covert channel which can potentially be used to leak information and to spread malware.