As AI accelerates the development of quantum computers, the threat to Bitcoin's encryption is growing. Stanford cryptographer Dan Boneh warns a rushed migration to post-quantum security could cause a "catastrophic bug" and is a greater risk than an imminent attack. The debate follows a Google paper lowering the resources needed to break Bitcoin's cryptography, intensifying discussions around proposals to protect vulnerable wallets.
Quantum computing threat to Bitcoin
- ▪A sufficiently powerful quantum computer could theoretically derive private keys from public keys, compromising vulnerable wallets on blockchain networks
- ▪As of March 1, 2026, over 34% of all bitcoin had an exposed public key on-chain, leaving those funds theoretically vulnerable to a quantum attack
- ▪A March 2026 Google Quantum AI whitepaper estimated that breaking Bitcoin's secp256k1 encryption could require as few as 1,200 logical qubits
- ▪Stanford cryptographer Dan Boneh views a cryptographically relevant quantum computer as possible but unlikely before 2035 at current funding levels
AI acceleration of quantum development
- ▪Machine learning systems are being used to optimize quantum error correction, one of the field's major engineering bottlenecks
- ▪Illia Polosukhin, co-founder of NEAR Protocol, stated that AI is an accelerator for scientific research, leading to progress earlier than expected
- ▪Researchers believe artificial intelligence may be accelerating the development timeline for quantum computing
Harvest now, decrypt later attacks
- ▪The strategy of collecting encrypted data for future decryption with more powerful computers is known as “harvest now, decrypt later.”
- ▪Security researchers are concerned that adversaries are collecting encrypted data today to decrypt it in the future with quantum computers
Post-quantum cryptography migration strategies
- ▪A lawsuit was filed in New York by a plaintiff called "Noah Doe" seeking ownership of 3.7 million BTC in dormant wallets, arguing they are abandoned property
- ▪Dan Boneh stated that aggressively moving Bitcoin to a post-quantum architecture by 2029 would be a "mistake."
- ▪Stanford cryptographer Dan Boneh warned that a rushed transition to post-quantum cryptography is more likely to cause a "catastrophic bug" than a quantum attack
- ▪A draft proposal, BIP-361, would freeze quantum-vulnerable Bitcoin addresses and phase out legacy signature types over a multi-year timeline
AI-driven security arms race
- ▪AI is being used by attackers to find software vulnerabilities, while defenders use it for code auditing and formal verification
- ▪Alex Pruden, CEO of Project Eleven, stated that security can no longer be treated as static infrastructure that is upgraded only once a decade
- ▪Researchers argue that the combination of AI and quantum computing is creating a permanent security arms race
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