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 ...
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 ...
Covert Channel Between the CPU and An FPGA By Modulating The Usage of the Power Distribution Network
use Time-to-Digital Converter sensors to observe these power variations. The sensor circuits are programmed into the FPGA fabric using only standard logic components. Our covert channel achieves a ...
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 ...
Ars Technica has been separating the signal from the noise for over 25 years. With our unique combination of technical savvy and wide-ranging interest in the technological arts and sciences, Ars is ...
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 ...
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