Bitcoin Developer Floats ‘Quantum Landmines’ to Trap Future BTC Thieves

Longtime Bitcoin Core developer Cory Fields has introduced an unconventional defense against future quantum attacks: secretly planted “quantum landmines” that could allow bitcoin holders to reclaim stolen coins while confiscating an attacker’s collateral, potentially turning attempted theft into an expensive mistake. In a Nov. 4, 2026, Bitcoin Development Mailing List post , Fields outlined three experimental mechanisms intended to discourage quantum-enabled theft through financial penalties rather than cryptographic protection alone. Fields, a longtime contributor to Bitcoin Core and researcher associated with MIT’s Digital Currency Initiative, emphasized that the concepts remain preliminary.