Hayes: Bitcoin's real risk isn't quantum computers but address reuse
- —Hayes says address reuse exposes the public key and raises quantum-attack exposure
- —Coinbase estimates about 6.9 million BTC sits on addresses with exposed public keys
- —Roughly 20,000 addresses holding over 50 BTC each are affected
- —Rotating to fresh addresses cuts risk but does not protect old coins with exposed keys
Why it matters: The quantum threat is not yet practical, but exposed keys on large legacy wallets remain a long-term risk factor for the market.
Source: Blockmedia