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#COLDCARD Firmware Release 1.3.4Q & 5.4.4Mk4 🍄⏫ Read the complete release and upgrade here 📁

COINKITE Blog

COLDCARD Bitcoin Spending Policy Released

New COLDCARD Feature Release: Spending Policies!

🔐 Single-Sig Spending Policies & 📱2FA! You can now reconfigure your existing COLDCARD with a policy📑, so it will refuse to sign transactions that are too large, too frequent, or sent to an address not on your whitelist We have also found a way to support **2FA authentication** using the usual phone apps (RFC 6238). If that's enabled, you will not be able to spend using your #COLDCARD unless you also have your phone and provide the correct #GoogleAuthenticator 6-digit numeric code. Added file rename, Explorer is now offered for transactions of all sizes, NFC improvement, Added @BullBitcoin_, and many other fixes and improvements! Watch the full video ▶️