Coldcard Hack Sparks Self-Custody Security Upgrade

The recent hack of Coldcard hardware wallets has led to a surge in interest for stronger security measures in Bitcoin self-custody, according to Cory Klippsten, CEO of Swan Bitcoin.

The breach was caused by a vulnerability in seed phrase generation at Coldcard, resulting in the theft of over 1,600 Bitcoin. About 90% of the stolen assets had not been moved as of a week after the attack.

Klippsten stated that his team immediately stopped all other work and reached out to customers directly, offering support to anyone who needed it, even if they were not Swan customers.

Instead of abandoning self-custody altogether, users are exploring ways to strengthen security, including moving to Swan Vault, a collaborative multisignature service designed to prevent assets from being accessed through a single device. Klippsten described this as an upgrade to a safer form of self-custody rather than an abandonment of it.

Klippsten noted that the incident was unfortunate for those who lost assets despite following recommended storage practices, but he expressed confidence that Bitcoin can absorb shocks and grow stronger in the long run. He also believes that this incident could ultimately help advance self-custody security.