Researchers from Ben-Gurion University in Israel think they have found a way to exfiltrate data from airgapped computers. The researchers say they have devised a number of techniques to disguise any visual clues that data may be being transmitted, like waiting until the monitor is turned off, or waiting until a screensaver kicks in. The technique is elaborate, and at the momentas far as we can tellonly exists within research laboratories. The AirHopper malware, dubbed AirHopper, running on the isolated computer ingeniously transmits sensitive information in the form of FM radio signals by manipulating the video display adaptor.”]
Source: https://grahamcluley.com/malware-can-steal-data-airgapped-computer-using-fm-radio-waves/