Ethereum co-founder Vitalik Buterin warned that rapid AI-driven mathematical advances could undermine lattice-based cryptography within two years, challenging current quantum-resistant standards. While the Ethereum Foundation targets December 2029 for quantum-resistant upgrades, researchers have halved attack timeline estimates, creating a potential security gap before network-wide implementation. Buterin noted that Ethereum's long-term strategy increasingly favors hash-based signatures over lattice designs due to fewer vulnerability vectors. Security experts recommend sophisticated holders reduce public-key exposure by moving funds to unused addresses, though Buterin cautioned against rushed migrations, stating he has personally lost more funds to botched transfers than to hacks.