Bitcoin and Ethereum face potential long-term threats from quantum computing due to reliance on elliptic curve cryptography. Bitcoin adopts a conservative, incremental approach through proposals like BIP-360, prioritizing底层 stability and avoiding major changes. Ethereum takes a more aggressive and structured path, emphasizing cryptographic flexibility as a system-level problem requiring multi-layer upgrades. Despite different approaches, both networks have yet to fully solve the complex technical and collaborative challenges of protecting assets from future quantum attacks. The article discusses the fundamental cryptographic vulnerabilities that could affect both major blockchain networks.

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