Researchers pulled a 256-bit key out of a device by filming ...

Sam Bent

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hex

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nevent

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Kind-1 (TextNote)

2026-08-27T19:56:09Z

Researchers pulled a 256-bit key out of a device by filming its power LED. The status light flickers with the chip's power draw, and that leaks the key. A full ECDSA key was recovered from 16m away through a window via a hijacked camera. https://www.nassiben.com/video-based-crypta

Raw JSON

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  "pubkey": "2786c134148537aa3142222cccc1b6fcf4863643ca78a9625d91aa9748d0e478",
  "created_at": 1787860569,
  "tags": [],
  "content": "Researchers pulled a 256-bit key out of a device by filming its power LED. The status light flickers with the chip's power draw, and that leaks the key. A full ECDSA key was recovered from 16m away through a window via a hijacked camera. https://www.nassiben.com/video-based-crypta",
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