Coinkite Inc., whose wallet users lost an estimated US$130M, said the vulnerability the hackers discovered 'is a warning for every company building Bitcoin hardware and software, not only us' Author ...

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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 ...

Owners of a popular bitcoin storage device are being urged to protect their cryptocurrency after security researchers said a software flaw may have allowed attackers to steal roughly $70 million worth ...

Adam Back, a British cryptographer and one of the early figures in Bitcoin's history, has come into focus as several businesses linked to him face severe scrutiny ...

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 ...

Bitcoin explained: how the blockchain, private keys and mining work, who controls the network and why the price moves. 20,085,534 of 21M BTC exist today.