Security and Verification

RESOURCE

COLDCARD Security and Verification

Firmware status, seed setup, passphrase recovery, public scrutiny, and responsible disclosure in one place.

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RESOURCE

How to Evaluate a Bitcoin Hardware Wallet After a Security Incident

What failed, what remains at risk, what changed, and what you can verify yourself.

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RESOURCE

Report a COLDCARD Security Issue

How to send a private, reproducible COLDCARD vulnerability report to Coinkite.

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