Google has set a 2029 target to transition to post-quantum cryptography, citing growing risks from quantum computing. The company highlighted threats such as “store-now-decrypt-later” attacks and the potential for quantum machines to break current encryption and digital signatures, which are widely used in systems securing crypto assets like Bitcoin and Ethereum.
The move has intensified debate within the crypto community over how to respond. Some support gradual upgrades to quantum-resistant signatures, while others argue changes could conflict with core principles like private key control. Despite the concerns, analysts note that the risk remains long-term, with most wallets not immediately vulnerable unless their public keys are already exposed on-chain.
