COLDCARD – Hardware Wallet – The Most Trusted and Secure Signing Device (aka. Hardware Wallet)

Duress PIN

You may define an optional “duress PIN code”. If anyone enters that PIN code, instead of the “real” PIN code, nothing special is shown on the screen and everything operates as normal… However, the bitcoin key generated is not the main key. It is effectively a completely separate wallet!

To take best advantage of this feature, you should put some Bitcoin into the duress wallet. How much you are willing to lose or what you need to make it plausible, we don’t know.

The “duress” wallet will still be derived from the original BIP39 words, so you don’t need to back it up separately, but there will be no way to get from that wallet back to the original wallet with the real funds in it.