Sept. 23, 2022, 11:43 a.m. | Bruce Schneier

Schneier on Security www.schneier.com

Okay, it’s an obscure threat. But people are researching it:


Our models and experimental results in a controlled lab setting show it is possible to reconstruct and recognize with over 75 percent accuracy on-screen texts that have heights as small as 10 mm with a 720p webcam.” That corresponds to 28 pt, a font size commonly used for headings and small headlines.


[…]


Being able to read reflected headline-size text isn’t quite the privacy and security problem of being …

academic papers information screen side-channel attacks videoconferencing zoom

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