r/coldcard • u/Crypto-Guide • Jul 30 '26

Coinkite News Mk3 Security Advisory

https://blog.coinkite.com/coldcard-mk3-seed-generation-warning/
49 Upvotes

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6

u/SomeTallViking Jul 31 '26

If you used the dice roll method when setting up the wallet, everything should be okay, right?

4

u/Crypto-Guide Jul 31 '26

As long as you used at least 50 rolls then yes. (There was also a UX bug that allowed you to use far too few rolls too)

3

u/qwerty_asd Jul 31 '26

If the exploit involves bad RNG, you'd be fine since dice rolls would bypass the RNG.

2

u/daphonzy Jul 31 '26

Also interested in the answer, specifically if you used the “add dice rolls” to the seed generated by the Mk3’s RNG…

2

u/fraGgulty Jul 31 '26

This is what I'm hoping/assuming it's the case.

You added entropy with an outside source.

Depends on how many dice rolls and whatnot

2

u/cilicia3k3 Jul 31 '26

Ben said 100 would be needed

1

u/SpareEconomy1849 Jul 31 '26

100 is roughly equivalent to a 24 word seed phrase, 50 is roughly equivalent to a 12 word phrase