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Bitcoin logged 2.27 million new wallets and 751,000 active wallets this week, its strongest onchain activity in months, as holders raced to move funds off Coldcard hardware wallets following a…
The hacker behind the Coldcard wallet exploit, believed to hold 2,055 BTC (about $130 million) in stolen bitcoin, moved funds for the first time in weeks, sending 30.185 BTC (about…
The Coldcard hardware wallet hack has grown to $116 million (potentially more) across four separate waves, and Coinkite says the last three days have been among the hardest in the…
Blockchain investigator ZachXBT says he has no plans to trace the $88.6 million Coldcard hack, telling followers that Bitcoin’s community has offered him little support in return for his work…
The Coldcard security incident entered another chapter after a public bitcoin transaction offered laundering services to the thief behind one of the largest self-custody bitcoin thefts ever recorded, while users…
A suspected third wave of Coldcard-related bitcoin sweeps has pushed the observed incident to an estimated 1,367 BTC, while exchange deposits and long-dormant wallet activity have added two more signals…
A five-year-old Coldcard software flaw may have allowed an attacker to reconstruct private keys and sweep more than 1,100 bitcoin, prompting the wallet’s maker to blame the discovery partly on…
An attacker exploited weak seeds generated by certain Coldcard hardware wallets to steal bitcoin worth roughly tens of millions from hundreds of addresses on July 30. According to a deep…