US quantum funding push raises long-term questions for Bitcoin security
The US Department of Energy plans up to $215 million in funding through its Quantum Genesis Q Competition to advance fault-tolerant quantum computing, aiming for systems with hundreds of logical qubits by 2028. The program would award $100 million for reaching at least 100 logical qubits, with additional $50 million prizes for 150 and 200 logical qubits. No current quantum computer can break Bitcoin’s cryptography, but Ethereum researcher Justin Drake warned that AI could speed up the discovery of mathematical weaknesses.
The U.S. Department of Energy’s Quantum Genesis Q Competition could allocate as much as $215 million to fault-tolerant quantum computing. It aims to demonstrate systems with hundreds of logical qubits by 2028. Awards include $100 million for reaching at least 100 logical qubits, plus $50 million prizes at 150 and 200 logical qubits.
Logical qubits differ from physical qubits: they bundle many error-prone physical units into more reliable computational elements. Bitcoin’s transaction signatures rely on secp256k1 elliptic-curve cryptography, while SHA-256 supports mining and hashing. Today’s quantum machines cannot yet defeat these safeguards, but Ethereum researcher Justin Drake cautioned that AI might accelerate discovery of mathematical weaknesses.
If fault-tolerant quantum computing advances, Bitcoin holders and crypto firms may face long-term security concerns, especially wallets with exposed public keys. Researchers and policymakers could use the funding race to prioritize post-quantum cryptography. However, 2028 targets and current machines remain far from breaking Bitcoin, so near-term effects may be limited to sentiment, investment, and preparation rather than immediate compromise.