Watch Out Bitcoin: Cryptography-Breaking Quantum Computers May Be Closer Than Expected, Says Caltech Research suggests fault-tolerant quantum machines could arrive sooner than expected, posing a threat to Bitcoin and Ethereum cryptography. Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment. Filed under: Altcoins - @ April 1, 2026 1:30 am