AFAIK, currently probably not, but this would be a bad basis for extrapolation about future capabilities. Conventional supercomputers are insanely fast and curr

AFAIK, currently probably not, but this would be a bad basis for extrapolation about future capabilities. Conventional supercomputers are insanely fast and current quantum computers do not yet have many qubits yet. But - very loosely speaking - if you add one qubit, the processing power can double. See the first answer here: [1] If the history of technology and cryptography teaches us anything, then quantum computers will break current encryption sooner than expected. If you're very paranoid, you may switch, in certain areas, to "quantum safe" symmetric encryption (higher key size, higher round numbers) with reasonably secure channel for key exchange instead of public key cryptography. [1] https://www.quora.com/Why-does-the-computing-power-of-a-quantum-computer-double-with-every-additional-qubit https://www.quora.com/Why-does-the-computing-power-of-a-quan...