Quantum Attack Threat Looms Over Bitcoin's Early Adopters

Bitcoin's early adopters may be at risk of having their coins compromised by a future quantum attack, according to security researcher Justin Drake. He warned that many of the earliest units sit in addresses where their public keys are exposed, making them vulnerable.

Nakamoto's Bitcoin could be among the first major targets due to this vulnerability. Drake explained that 'all of these early Bitcoin addresses are raw pub keys' and 'there isn't this hashing step, and so they're all vulnerable.' He described Satoshi's holdings as a potential target for 'the operator of a quantum computer,' putting them in a different position from BTC that has never been spent from a hashed address.

Ordinary holders face a different risk tied to spending. A Bitcoin address generally contains a hash of its public key rather than the key itself. But once the cryptocurrency is spent, the public keys become visible to everyone. If the assets stay in a new address and are never spent, their public key has not yet been exposed.

Drake also pointed out that even the fastest quantum machines discussed in current research would need time to crack cryptographic keys. He said early upgrades could introduce bugs, while scammers could exploit the fear by sending fake messages claiming holders must immediately move to a 'post-quantum secure' wallet.