Google’s latest quantum research pushed a new risk back into the crypto spotlight. Bitcoin and ether posted only modest moves, yet several tokens tied to quantum-resistant security jumped hard in a single day. The shift showed that traders have started pricing a future threat long before any real attack machine exists. The move followed fresh research from Google’s Quantum AI team. Google said future quantum computers may break the elliptic-curve cryptography used across crypto systems with fewer than 500,000 physical qubits. The company also said the estimate marks a roughly 20-fold drop from earlier assumptions, tightening the debate around long-term blockchain security. Google’s research heightened concerns about Bitcoin because the network still relies on elliptic-curve cryptography for wallet security. The company said that, under its model, a cryptographically relevant quantum computer could run the necessary circuits in a few minutes. That raised the urgency around post-quantum migration across the sector. Some analysts now point to 2029 as a key deadline for preparation. Google itself referenced a 2029 migration timeline as quantum systems move closer to relevance. That timetable has added weight to calls for Bitcoin and other networks to strengthen defenses before the threat becomes practical. Ethereum also entered the discussion after the same white paper mapped a wider attack surface. The report identified five attack vectors across the Ethereum stack and estimated large areas of exposure in accounts, staking, bridges, and data availability. Google’s paper said Ethereum’s broader architecture creates more quantum-sensitive points than Bitcoin. As that backdrop formed, capital moved into tokens linked to post-quantum designs. Reports tied to CoinGecko data showed Quantum Resistant Ledger and Cellframe jumping around 50% over 24 hours. Abelian rose 25%, while the Qubic and QAN platform each added about 10%. Zcash also gained nearly 7% during the same stretch. The wider category