Cory Fields, a Bitcoin Core developer at MIT’s Digital Currency Initiative, has proposed an experimental concept called “quantum landmines” to deter thieves using quantum computers. Its mechanism would require an attacker to post collateral before moving Bitcoin; the collateral would be returned for honest behavior but could be forfeited if the attacker were caught attempting theft. The design relies on a commit-and-reveal protocol and quantum-resistant wallets, while its technical rules and soft-fork mechanics remain unresolved. As of early November 2026, approximately 7.1 million BTC, or nearly 35% of circulating supply, were held in wallets with exposed public keys. The proposal is still only a post to the bitcoin-dev mailing list, with no code change or immediate community response.
Source: Read the original article
