For attack: custody is never provable in crypto, as in you can prove you own an account but you cant prove nobody else does. so a hacker can use that to their advantage. They can also delay rotation by carefully picking their targets and amounts, as all the victims will be victim blamed and not believed for a very long time so a quantum computer hack could exist for a long time unless a large theft was done. Its tricky because many power users will report unexpected thefts and the rumors will start quickly.

We are talking about deriving private keys from an address hash, which is already still improbable with quantum logic

There is also the idea of changing a signed transaction in flight before confirmation, which is the most probable

Or attempting to alter the state of a smart contract, which is less probable and needs consensus

there are just already lower tech ways to make billions getting other people’s crypto, and turning that into cash easily, assuming you even want state money

its just not worth it for the “aha! see only I could make this bet so accurately” gloat, right now