Alice & Bob say 30K qubits could crack Bitcoin keys in an hour

Quantum computing firm Alice & Bob published research claiming that cracking the cryptography protecting Bitcoin could require far fewer quantum resources than previously assumed, with 30,000 qubits potentially breaking keys in about an hour. The Paris- and Boston-based company says the finding adds urgency to preparing the cryptocurrency for a post-quantum future. Traders care because a credible path to breaking Bitcoin's key security would threaten the long-term integrity of the network and could pressure sentiment around its store-of-value thesis.