Post #2438398
2026-02-21 17:49 UTC
@Slater450413@infosec.exchange You could try aluminium or copper tape, or use electrical tape to fix a small piece of aluminium foil. That should block any light short of gamma rays, I think.
Replies (1)
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@Slater450413@infosec.exchange 2026-02-22 07:20
@maxy@sigmoid.social Fair point, hadn't considered copper tape, I might give that a go. 👍 I'd been thinking next time I find a smashed phone screen protector, I'd take a small piece of that. I based that theory purely on seeing how bad IR security cameras are from behind glass. The electrical tape experience I had reminded me of a YouTube clip I saw recently where a germanium coin had a similar outcome. https://youtube.com/shorts/Chx2hnZrUAQ?si=uUrHtl46_CCF_wy-