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The restless Mordechai Gur

The restless Mordechai Gur and published (https://www.bleepingcomputer.com/news/security/air-gapped-pcs-vulnerable-to-data-theft-via-power-supply-radiation/ ) a new job of stealing data from computers that are not connected to the network. This time, the thing planted on the car does not blink (https://t.me/tomhunter/1260 ) indicators, and regulates the load on the processor and its frequency. Due to this, the power supply emits a low-frequency electromagnetic wave, which transmits information.

The attack received the snide name COVID-bit due to the fact that it works at a distance of up to two meters. On a PC with an acceptable bit error rate, it was possible to achieve speeds of up to kilobits per second. But laptop power supplies generate a weaker signal. The receiver can be a smartphone with a frame antenna, and it can be located behind the wall from the computer. Fans of spy info without romance can get acquainted with the technical details at the link (https://arxiv.org/pdf/2212.03520.pdf ).

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