[djrogers]

TLDR; RSA keys can be generated large enough (1TB was the example in the article) that it would still take an inordinate amount of time to brute force, in spite of the potential speed advantages available to the quantum computer.

[SomeStupidPoint]

Are 1TB keys still secure?

I seem to recall that some schemes have issues with keys being too large because of things like prime scarcity.