May 06, 2020 Air gap security beaten by turning PC capacitors into speakers Researchers have poked another small hole in air gapped security by showing how the electronics inside computer power supply units (PSUs) can be turned into covert data transmission devices. Naked Security
June 28, 2016 Can your computer fan be used to spy on you? Researchers in Israel claim that your computer's fan speed can be used to send secret signals. But it's kind of slow... very, very slow. Naked Security
