We've already used and proven Shor's algorithm[0]; we just need a machine with enough quantum bits to defeat conventional encryption. [0] https://en.wikipedia.

We've already used and proven Shor's algorithm[0]; we just need a machine with enough quantum bits to defeat conventional encryption. [0] https://en.wikipedia.org/wiki/Shor%27s_algorithm https://en.wikipedia.org/wiki/Shor%27s_algorithm