Former Mt. Gox CEO Mark Karpelès proposes a Bitcoin hard fork to recover 80,000 BTC stolen in 2011, now worth $5.2B. Critics say it threatens immutability.

Investigators have spent days analyzing notes from people claiming to be Nancy Guthrie’s kidnappers, including one that demanded millions of dollars in Bitcoin for her release.

Cryptocurrency wallet makers and security companies are pushing out post-quantum products even though large-scale quantum computers capable of breaking Bitcoin do not exist yet. The US National ...

A man is raising the stakes in his years-long battle to get back a hard drive that contains a discarded bitcoin key worth somewhere around $800 million by offering to purchase a landfill in Great ...

A man is raising the stakes in his years-long battle to get back a hard drive that contains a discarded bitcoin key worth somewhere around $800 million by offering to purchase a landfill in Great ...

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