use Time-to-Digital Converter sensors to observe these power variations. The sensor circuits are programmed into the FPGA fabric using only standard logic components. Our covert channel achieves a ...

A newly devised covert channel attack method could undermine diligently devised air gaps at highly sensitive organizations. In industrial control systems security, the term "air gap" is contested. It ...

Ars Technica has been separating the signal from the noise for over 25 years. With our unique combination of technical savvy and wide-ranging interest in the technological arts and sciences, Ars is ...

I had assumed in the white image example, that users had copied the image rather than used a screenshot, so I tested with a screenshot (MacOS 14.7) using copy-to-clipboard. Exactly the same answer as ...