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RE: Huuuuge Bitcoin Security Threat! - WARNING
And the public keys neither, since a quantum computer can reverse engineer the private key from the public.
So a bitcoin address is not recommended to be reused.
Does this mean we need to create a quantum-resistant bitcoin copy? :P
No, bitcoin is pretty much quantum resistant if you don't reuse the address.
So if you have a big stash of coins, when you send out money from that address, send back all the change money to another address of yours that was un-used.
So your address where the big money is stored should not have an outgoing transaction.