Researcher Claims 1 Bitcoin Bounty for Successfully Executing the Largest Quantum Attack on Underlying Technology

The threat of quantum attacks on bitcoin has become more tangible after an independent researcher successfully broke a 15-bit elliptic curve key on publicly accessible quantum hardware. This achievement, which earned the researcher a 1 bitcoin bounty worth approximately $78,000, demonstrates the rapid progress being made in this field. The breakthrough, facilitated by quantum security startup Project Eleven, is the largest public demonstration of its kind to date and has significant implications for the security of bitcoin and other major blockchains. Elliptic curve cryptography, which underpins the security of these networks, relies on the difficulty of deriving a private key from its public counterpart. However, the advent of quantum computers running Shor's algorithm challenges this assumption, potentially compromising the security of these systems. While this achievement does not immediately threaten the security of bitcoin, which uses 256-bit elliptic curve security, it highlights the need for vigilance and the importance of developing quantum-resistant cryptographic solutions. The previous public demonstration, which broke a 6-bit key, was surpassed by a factor of 512 in just seven months, underscoring the rapid advancement in this area. As the barrier to executing such attacks continues to drop, the concern for wallets with publicly visible addresses grows, with an estimated 6.9 million bitcoin at risk. In response, developers are exploring migration paths, including the introduction of quantum-safe address types, to mitigate this threat and ensure the long-term security of these networks.