Researcher wins bitcoin bounty for quantum attack

An independent researcher has won a one bitcoin prize for successfully executing the largest quantum attack demonstrated publicly to date, breaking a 15-bit elliptic curve key. While this achievement is far from compromising Bitcoin's 256-bit security, it signifies rapid progress in practical quantum attacks relevant to cryptocurrencies. This development intensifies concerns about Bitcoin holdings with exposed public keys and underscores the urgency for post-quantum cryptography migration plans across major blockchains like Bitcoin, Ethereum, and Tron.