A new attack dubbed 'SmartAttack' uses smartwatches as a covert ultrasonic signal receiver to exfiltrate data from physically isolated (air-gapped) systems. Air-gapped systems, commonly deployed ...

Communications encryption does prevent unauthorized decoding, but does not ensure stealth of the transmission. Here, the authors characterize the quantum limits of covert communication on lossy ...

Academics from an Israeli university have published new research today detailing a technique to convert a RAM card into an impromptu wireless emitter and transmit sensitive data from inside a non ...

Air-gapped systems are protected by several layers of defenses, on top of the "air gap," and you need novel data transmission techniques to go around these defenses.