Coldcard Hack Exposes Security Flaw in Offline Wallets

A security lapse in the Coldcard device has allowed thieves to plunder at least $100 million of Bitcoin from unsuspecting customers.

Coldcard, a company that makes devices for storing cryptocurrency offline, had failed to provide a randomized process for creating seed phrases. Instead, it relied on a predictable pattern that hackers could exploit using trial-and-error methods.

The breach has left many in the crypto community reeling, particularly those who considered themselves security-conscious Bitcoin owners. The incident has sparked a crisis of faith among some, with concerns about the security of offline wallets and the potential for similar breaches in the future.