A flaw in Coldcard wallets cost Bitcoin holders more than $100 million—and reopened an old fight about whether you can trust ...

Offline wallets are supposed to be particularly secure. But if the random number generator isn't working, the seed phrase isn ...

The latest missing money stems from a software flaw in what’s known as a “cold” Bitcoin wallet hosted by Canada-based ...

The amount of Bitcoin stolen through the Coldcard hardware wallet security incident has climbed to more than 1,367 BTC, worth ...

Quick ReadAn attacker drained $70 million from 1,200 Coldcard wallets in 40 minutes by remotely reproducing predictable seeds ...

The result was that attackers have been able to systematically recalculate and drain user wallets. Reports on Friday placed ...

A flaw in Coldcard's firmware has put the spotlight on a basic part of wallet security: how the device generates its seed in ...

An attacker drained 1,082.65 Bitcoin, worth about $70 million, from 1,196 wallets during a 41-minute sweep on July 30. Galaxy ...

Coldcard firmware flaw cut Bitcoin key entropy to 40 bits, enabling up to $88M in theft. Affected Mk3 users must generate new ...

Weak key generation in Coldcard firmware let an attacker drain 594 BTC ($38M) from 500 single-sig wallets. Which Mk3, Mk4, Q and Mk5 seeds are at risk.

An attacker has drained over 1,000 bitcoin (approx worth around $70 million) from nearly 1,200 wallets that used Coldcard hardware to generate a key seed, Galaxy Research revealed on Friday. The ...

A crypto hack targeting a firmware flaw in the Coldcard Bitcoin hardware wallet has drained at least 1,367 BTC, worth approximately $86M at current prices, from more than 4,500 cold storage addresses ...