PANews reported on May 18th that, according to CoinDesk, Citibank stated in a recent report that quantum computing breakthroughs are happening faster than expected, compressing the timeline for security risks to crypto assets and internet infrastructure. Bitcoin, due to its more conservative governance and slower protocol upgrades, is considered to be most severely exposed to quantum risks. The report points out that early P2PK addresses, wallets with exposed public keys on-chain, and some long-dormant addresses (including wallets believed to belong to Satoshi Nakamoto) face a potential attack surface of "exposed public keys," estimating that approximately 65,000 to 69,000 BTC are at quantum risk, representing about one-third of the circulating supply. Citibank believes that while PoS networks like Ethereum are more flexible in migrating to quantum-resistant cryptography due to more frequent upgrades, high-performance quantum computing could also threaten their validator keys in the future.