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. “The purpose of this post is just to introduce the ideas as thought experiments,” Fields explained, adding that he believes implementation through a soft fork could be possible.

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