Bitcoin Quantum Threat: Coinbase Urges Action as 7M BTC Exposed

Key Insights Bitcoin quantum threat prompted Coinbase to propose flexible signature designs and early network preparations. Coinbase identified BIP-360 and P2TRv2 as potential foundations for Bitcoin’s post-quantum transition. Project Eleven estimated that 7.1 million BTC have exposed public keys, creating potential future security risks. Coinbase urged Bitcoin developers to accelerate preparations against future quantum computing attacks on Oct. 13. The exchange warned that upgrading Bitcoin’s cryptographic security could take several years. The warning followed growing concern about cryptocurrency addresses with exposed public keys. Project Eleven estimated that approximately 7.1 million BTC could face future quantum attacks.