
European Union supervisors have warned that advances in quantum computing could weaken the cryptographic protections used by blockchain networks, according to Cointelegraph. The warning comes as Bitcoin developers consider a draft plan for migrating the network to security designed to withstand potential quantum threats. Ethereum, meanwhile, is targeting 2029 for its own response to the issue. Quantum computers could eventually challenge the systems that protect crypto transactions and blockchain accounts, making long-term security planning an important issue for major networks. The developments place Bitcoin (BTC) and Ethereum (ETH) at the center of the discussion, while broader concerns may affect the digital-asset market’s approach to cryptographic resilience. The European supervisors’ message highlights a future security risk rather than an immediate change to current blockchain operations. Bitcoin’s migration proposal remains at the draft stage, while Ethereum’s stated target provides a separate timeline for addressing the potential threat.