db:threat/quantum-mining-disruption
Threat
Quantum computers out-mine every miner on earth.
Quantum Mining and Hashing Disruption
Grover's algorithm gives a quadratic speedup for brute-force search, which means SHA-256's effective security drops from 256 bits to 128 bits on a quantum computer.
The full threat page — recommended controls, incident references, and citations — lands when Defending Bitcoin ships on June 15, 2026.