Coldcard Dispatches Security Alerts to Reachable Users via Official Store and Email Channels

Coinkite sends batched security notifications to Coldcard users via official channels, urging verification of sources and warning against sharing sensitive credentials or signing unverified transactions.

Woofun AI reports that Coinkite, the manufacturer behind Coldcard hardware wallets, has distributed security alert emails to all reachable user addresses through its store and email subscription systems. These notifications were dispatched in batches beginning last Friday. The company advises users to verify that such communications originate from official Coinkite sources and to consult timestamped announcements on its official blog rather than relying on screenshots or third-party aggregators. Firmware updates must be downloaded exclusively from coldcard.com/downloads. Coinkite emphasizes that it will never request PIN codes, seed phrases, BIP-39 passwords, or signatures for unverified PSBT transactions.