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 ...

(Phys.org) —The best way to keep a message secret is not just to encrypt it, but to hide the fact that the message is even there. Computer scientists have created "covert channels" on the Internet, ...

A transfer of information that violates a computer's built-in security systems. A covert storage channel refers to depositing information in a memory or storage location that can be accessed by ...

A new attack dubbed 'SmartAttack' uses smartwatches as a covert ultrasonic signal receiver to exfiltrate data from physically isolated (air-gapped) systems. Researchers at the School of Cyber Security ...

“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 ...

Researchers have found a new covert data exchange technique that abuses the TLS protocol that can circumvent traditional network perimeter protections. Researchers have released a proof-of-concept ...

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.

A new data exfiltration technique has been discovered, which uses a covert ultrasonic channel to leak sensitive information from air-gapped computers to a nearby smartphone device. The adversarial ...

[Ryan Flowers] writes in with a clever little hack that can allow you to hide data where nobody is going to go looking for it. By exploiting the fact that a web server will generally log all HTTP ...