$BSV
Cooling DownSnapshot Window: 2026-08-14 14:10 UTC · ← Back to Crypto Overview
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How much safer is cold storage really, once you factor in the person using it? Been chewing on this for two weeks and I want to hear where people actually land because I keep flip flopping. Quick recap in case you missed either one. Coldcard: a build error in firmware from March 2021 meant some devices generated seeds using a software PRNG instead of the chip's hardware RNG. Effective entropy dropped to around 40 bits on older models, which is brute forceable offline. Nobody got phished. Nobody's device was stolen. Nobody typed their words into a fake site. Something like 1,800 BTC gone from 5,000+ addresses, and updating the firmware doesn't fix a seed that was already generated weak.