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Will fireproof safes work in reverse?
(lemmy.world)
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this post was submitted on 24 Mar 2026
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Privacy
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Additionally, in general, what digital signals (if any, reliably) are able to penetrate a locked safe?
I assume you mean radio frequencies, and the answer is basically none. A grounded fireproof safe is basically a perfect faraday cage.
EDIT: Ok, I actually have a pedantic answer for this. If you put a microphone on a device inside the safe, you can signal it from outside by sending it vibrations, and you could encode a message in binary and thus technically send it a "digital signal". If you wanted to be a little more analog you could use Morse code :)
Yes. Ok well that complicates things, but I suppose a piece of string small enough may be able to dangle out of the closed door and maybe be slightly moved…
Note, @disorderly@lemmy.world is referring to metal-safes, not the plastic file-safe crap you'll find in Walmart.
For hard-drive and chip-storage destruction, its hard to beat a drill or a hydraulic press. Holes, or snapping the storage-medium in half will generally do. From there to recyclers or landfill, either is less toxic to the environment than burning the stuff in a PC or phone.
Thanks, might well be something I need to look into depending on my decision.