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Researcher Exploits Power Supply to Transmit, Steal Data from PC

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A power supply.

Mordechai Guri at Israel’s Ben-Gurion University of the Negev found that it’s possible to use malware to rig a PC’s power supply to transmit data such as documents, keystrokes, and passwords from the computer.

Credit: MIT News

Mordechai Guri at Israel's Ben-Gurion University of the Negev transmitted stolen data from a personal computer by manipulating the device's power supply.

"By regulating the workload of the CPU [central processing unit], it is possible to govern its power consumption and hence control the momentary switching frequency of the SMPS (switch-mode power supplies)," Guri explained.

"The electromagnetic radiation generated by this intentional process can be received from a distance using appropriate antennas."

Guri said malware installed on a universal serial bus drive could infect the target PC, but suggested banning smartphone use around the computer as a countermeasure.

From PC Magazine
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