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Exfiltrating data from air-gapped computers by modulating fan speed

27
Jun
2016
Exfiltrating data from air-gapped computers by modulating fan speed

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For the last few years, researchers from Ben-Gurion University of the Negev have been testing up new ways to exfiltrate data from air-gapped computers: via mobile phones, using radio frequencies (“AirHopper”); using heat (“BitWhisper”), using rogue software (“GSMem”) that modulates and transmits electromagnetic signals at cellular frequencies.

The latest version of the data-exfiltration attack against air-gapped computers involves the machine’s fans.

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