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They wouldn't be rendered worthless, but the security would take a hit for sure. Any coins mined (and not moved) before 2012 would be at risk, in addition to an
by droffel 11y ago
They wouldn't be rendered worthless, but the security would take a hit for sure. Any coins mined (and not moved) before 2012 would be at risk, in addition to any address that has been reused since then (revealing the pubkey, instead of just the pubkey hash). Addresses created post-2012 that have not been spent from (spending reveals the pubkey) would still be 100% secure.
- andrewla 11y agoEh -- "secure-ish" at best. Spending those utxo's requires revealing the pubkey, at which point someone with a quantum computer can just break your pubkey and offer a new transaction with a higher fee while your transaction is still in the mempool.