Apple's M1 chip has a vulnerability that can't be fixed without a silicon revision, according to developer Hector Martin. The flaw allows for covert channels that enable two malicious apps to talk to ...

“To operate efficiently across a wide range of workloads with varying power requirements, a modern processor applies different current management mechanisms, which briefly throttle instruction ...

“Graphics Processing Units (GPUs) are ubiquitous components used across the range of today’s computing platforms, from phones and tablets, through personal computers, to high-end server class ...

Researchers at the School of Cyber Security at Korea University, Seoul, have presented a new covert channel attack named CASPER can leak data from air-gapped computers to a nearby smartphone at a rate ...

One of the classic ways to smuggle information out of a watched network is to encode the data in the time delays between packets that are sent. Vincent Berk, Annarita Giani, and George Cybenko at ...

Researchers have devised numerous ways to extract data from computer systems by developing covert channels. These channels fall into four general groups: Electromagnetic (the earliest attack vector) ...

As the line between securely hosted and controlled enterprise applications and cloud-based applications continues to blur, there’s more “legitimate” traffic between corporate networks and the Internet ...

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 ...

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