Yeah seems a change was made in firmware version 4.0.0 - March 17, 2021 which changed the way RNG was generated and wallets generated before that should be fine, not sure I’d want to risk it and wait until the full report from coinkite comes out though
https://engineering.block.xyz/blog/predictable-rng-fallback-and-32-bit-reseed-in-coldcard-firmware
https://github.com/Coldcard/firmware/blob/master/releases/History-Mk3.md
Saggwell
npub1ym…8t72l
2026-07-31 18:50:35 UTC
in reply to nevent1q…4xv2
Author Public Key
npub1ymxqwhxxt6mh6c4lkl7a0frs6g55tanz85zkx05sl3zftteh8v5s68t72lSeen on
wss://relay.damus.ioPublished at
2026-07-31 18:50:35 UTCEvent JSON
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"created_at": 1785523835,
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"content": "Yeah seems a change was made in firmware version 4.0.0 - March 17, 2021 which changed the way RNG was generated and wallets generated before that should be fine, not sure I’d want to risk it and wait until the full report from coinkite comes out though \n\nhttps://engineering.block.xyz/blog/predictable-rng-fallback-and-32-bit-reseed-in-coldcard-firmware\n\nhttps://github.com/Coldcard/firmware/blob/master/releases/History-Mk3.md",
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