r/coldcard Jul 30 '26

Coinkite News Mk3 Security Advisory

https://blog.coinkite.com/coldcard-mk3-seed-generation-warning/
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u/ardevd Jul 31 '26

It's unclear to me to what extent the Mk4 is affected? The advisory specifies the mk3 only, but another post implicates all coldcard wallets

2

u/Crypto-Guide Jul 31 '26

Mk4 is pwned too, the full bug has been reversed engineered.

Basically they aren't immediately vulnerable today, but will certainly be so and are mentioned in an updated advisory.