Hackers have found a software flaw in Coldcard, a popular hardware Bitcoin wallet that is designed to keep cryptocurrency offline in "cold storage," and are stealing millions of dollars in an ongoing ...

Over $70 million in Bitcoin has been pinched. Coldcard has since urged its users to take precautions. The popular Bitcoin hardware wallet Coldcard product, made by Coinkite, is at risk following a $70 ...

Galaxy Research links 1,789 Bitcoin to the Coldcard hack, with 1,561 BTC still unspent in attacker-controlled addresses.

A wallet tied to the Coldcard hacker has received several deposits since July 30, with some carrying written messages attached via Bitcoin's OP_RETURN function. Messages range from genuine-sounding ...

Coldcard’s entropy bug guessed single-sig seeds and swept more than $100 million. Coordinators report zero losses from ...

A catastrophic hack on Coldcard hardware wallets led to $130 million in Bitcoin being stolen from thousands of addresses, marking it as bitcoin's worst disaster. The highly-regarded devices, made by ...

An ongoing attack against a popular Bitcoin wallet has already led to the theft of an estimated $89m, according to researchers. Coinkite’s Coldcard is a Bitcoin-only hardware wallet which came under ...

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Coldcard’s reported $100 million-plus exploit reframes institutional crypto custody as a governance problem, not a storage problem. Independent key generation, multi-party approvals, audit trails, ...

A week-long streak of inflows into US spot Bitcoin ETFs has coincided with the Coldcard wallet exploit, fueling debate over whether some investors are shifting away from self-custody. Demand for US ...

A long-dormant bitcoin wallet holding 500 BTC, inactive since 2013, moved all its funds on Monday amid a widening security crisis involving Coldcard hardware wallets. On-chain data show a notable ...