What if quantum computers already broke Bitcoin?
A quantum computer powerful enough to break Bitcoin could steal coins while the network runs as usual.
If a quantum computer capable of breaking modern encryption were to come online today, Bitcoin would likely be under attack — and no one would know.
“Everything would look like legitimate access,” David Carvalho, CEO of post-quantum infrastructure company Naoris Protocol, told Cointelegraph. “When you think you’re seeing a quantum computer out there, it’s already been in control for months.”
“You wouldn’t even know,” he said.