What is the timeline for quantum computing to break Bitcoin?

The timeline for quantum computing to break Bitcoin is uncertain but estimated to be within 10-20 years, based on current technological progress. Quantum computers need millions of stable qubits to run Shor's algorithm effectively against Bitcoin's elliptic curve cryptography, whereas today's most advanced systems have only hundreds of noisy qubits. However, rapid advancements in error correction and qubit scalability could accelerate this timeline. Some experts, like Nobel-winning physicists, warn that Bitcoin could be an early target as quantum computers mature, potentially within the next decade if breakthroughs occur. The risk is not immediate but requires proactive measures, as transitioning Bitcoin to quantum-resistant algorithms takes time for development, testing, and adoption. Factors influencing the timeline include funding for quantum research, improvements in qubit coherence, and the emergence of practical applications. Users can protect themselves by using new addresses for each transaction and avoiding reuse of public keys, but long-term security depends on upgrading Bitcoin's protocol before quantum computers become capable enough.

📖 Read the full article: Nobel-winning physicist warns bitcoin could be early target of quantum computing - CoinDesk