Reply to post: Timex/Microsoft Datalink watch

LCD pwn System: How to modulate screen brightness to covertly transmit data from an air-gapped computer... slowly

W T Riker

Timex/Microsoft Datalink watch

Sounds a bit like the Timex/Microsoft Datalink watch from 1994, where a series of flashing horizontal lines on a CRT monitor were sensed by an optical sensor on the watch.

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