Bitcoin’s Quantum Transition Won’t Stop at Bitcoin
A future large-scale quantum computer could threaten Bitcoin signatures, and any move to quantum-resistant cryptography would require changes across wallets, exchanges, custodians and tokenized Bitcoin infrastructure. The piece uses WBTC, with 116,000 tokens reported in circulation and about $9.5 billion in backed assets, as an example of these dependencies. WBTC is preparing to migrate custodian deposit addresses and has announced exploration of a multi-custodian reserve model. These steps may support operational resilience but do not themselves make WBTC quantum-resistant; custody, reserves and connected networks would also need to adapt. No quantum computer is currently known to be capable of attacking Bitcoin at scale, and the transition timeline remains uncertain.
