Expert: Quantum computing's top threat is financial infrastructure, not BTC wallets

Andrew Gault, CEO of ZeroTier, has argued that the primary risk from quantum computing lies not in hacking Bitcoin wallet private keys but in the broader authentication and payment infrastructure of the financial system, including institutions, exchanges, and custodians. He explained that attackers are already gathering data such as inter-institutional payment records, authentication messages, and digital signatures, which could be decrypted in the future through "Harvest Now, Decrypt Later" attacks once quantum computers become sufficiently powerful. Gault also pointed out that digital asset infrastructure, including exchange API authentication, cross-chain bridge proofs, and custodian signature systems, is exposed to the same danger.