0 sats \ 1 reply \ @kevkevin 27 Mar 2022 \ on: Coldcard Mk4 - NFC demo bitcoin
so the mk4 won't be able to sign via NFC just exporting a wallet's address?
it seems like it might be a smart move at first to not extend signing ability to nfc and keep the attack surface minimized. I wonder if this could (or should) be changed via firmware update in the future