We don't know if SHA-256 hasn't been broken, because a highly profitable way to monetize that knowledge would be to silently mine bitcoin at near zero cost.
We don't know if SHA-256 hasn't been broken, because a highly profitable way to monetize that knowledge would be to silently mine bitcoin at near zero cost.
But, you're right. It could all be hacked and we have no way to prove it isn't.
Maybe they're more greedy than malicious. Maybe they're waiting for a good moment.
