
EU Regulators Warn Q-Day May Arrive Before Quantum Computers Are Commercially Useful
- —EBA, EIOPA and ESMA flagged quantum risk as one of three emerging vulnerabilities for the EU financial system
- —"Harvest now, decrypt later": data intercepted today could be decrypted in the future
- —The EU recommends a post-quantum cryptography migration strategy by the end of 2026
- —Glassnode: 6.04 million BTC, 30.2% of supply, have public keys exposed on-chain and are targetable
Why it matters: The quantum threat directly affects Bitcoin and Ethereum: roughly 30% of BTC supply is exposed, with Q-Day estimates running from 2030 to 2032.
Source: Decrypt