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cryptoAug 1, 2026, 9:10 AM

Coldcard Hardware Wallet Flaw Results in Theft of 594 BTC Worth $38M

A firmware vulnerability in Coldcard hardware wallets allowed attackers to steal approximately 594 BTC (~$38.2 million) from around 500 users on July 31, according to blockchain analysts Lookonchain and developer Coinkite.

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On the night of July 31, roughly 500 Coldcard hardware wallet owners lost a combined 594.48 BTC, valued at about $38.2 million, in a theft flagged by on-chain analysts Lookonchain.

Coldcard manufacturer Coinkite acknowledged the incident in a blog post, attributing the breach to a vulnerability in the device firmware. The company has not yet disclosed specific technical details or the exact mechanism of the attack.

The stolen funds represent a significant single-point exploit in the hardware wallet ecosystem. It remains unclear whether affected users will be compensated.

Source: ForkLog