Coldcard Q Key Teleport Offers Secure Remote Bitcoin Key Management

Coinkite's Coldcard Q hardware wallet uses Key Teleport to let Bitcoin holders securely send private keys and partially signed transactions over the internet without relying on vulnerable smartphone apps.

• Key Teleport lets users send encrypted private keys and multisig transactions between Coldcard Q devices over the internet.
• The method avoids smartphone apps like WhatsApp or Signal, which run on complex hardware not designed for securing crypto keys.
• It outperforms the older Tails-OS plus PGP approach, which required a burner laptop and multiple encryption steps.
• The feature resisted advanced AI decryption attempts during testing.
• Useful for Bitcoin treasury managers, travelers, and emergency key-holder scenarios.

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Last updated 1 Jul 2026