Nobel Prize in Physics laureate warns: The window of opportunity for Bitcoin facing quantum computing threats is approaching.

Odaily Planet Daily, a report: Former Google quantum hardware lead and the 2025 Nobel Prize in Physics winner John Martinis warned that Bitcoin could become one of the first real-world attack targets of quantum computing. He said recent Google research shows that advanced quantum computers could derive Bitcoin private keys within minutes, greatly weakening the computational security barrier that the network currently relies on. Because Bitcoin relies on elliptic curve cryptography, and the network upgrades are slow and decentralized, this makes quantum threats more difficult to address than in traditional financial systems. The public-key exposure window when Bitcoin transactions are broadcast could be exploited by quantum computers to intercept funds before the transaction is finally confirmed. John Martinis emphasized that although building such quantum computers remains an extremely challenging engineering task, the community can’t afford to be complacent. He suggested planning quantum-resistant upgrades as early as possible, and expects the related threats to gradually become apparent within 5 to 10 years. (CoinDesk)