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NeutrinosFTW t1_j23gprb wrote

Reply to comment by red75prime in An IBM Quantum Computer Will Soon Pass the 1,000-Qubit Mark | The Condor processor is just one quantum-computing advance slated for 2023 by nick7566

Great answer! Just one note: you wouldn't necessarily need to break SHA-256 in order to break bitcoin, you could also just break ECDSA, which would allow you to spend any bitcoin in any wallet. This is possible with a large enough quantum computer, though you would need significantly more than 1000 qubits (in the hundreds of millions).

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