The Growing Threat Of Network-Based Steganography | MIT Technology Review: "... They point out that before a countermeasure that does do this can be built, researchers will need to come up with a new set of fundamental approaches to counter the newly evolving forms of steganography. One thing is for sure: the detection and prevention of network steganography is set to become increasingly challenging as the threat from malware such as Duqu spreads. Be warned! Ref: arxiv.org/abs/1407.2029 : Hidden and Uncontrolled – On the Emergence of Network Steganographic Threats"