Quantum threat: Bitcoin debates, Ethereum/Coinbase build post-quantum roadmaps
Crypto networks are ramping up preparation for the looming quantum threat to today’s cryptography. The response differs by ecosystem.
Bitcoin: the debate is still “whether” to act. Analysts such as Jefferies have argued investors should drop BTC due to long-term vulnerability, while Cathie Wood’s Ark Invest says the risk is real but not immediate. With Taproot activated in 2021, developers now discuss practical migration paths for potentially exposed older coins. Proposals include BIP360 (helping move funds to safer addresses gradually) and “Hourglass” (gradually limiting vulnerable coins unless moved), with estimates that up to millions of BTC—including about 1 million linked to Satoshi—could be exposed.
Ethereum & Coinbase: the focus is “how.” The Ethereum Foundation expanded quantum research in 2025 and is pursuing a phased transition using post-quantum signature schemes and architectural work such as LeanVM to keep compatibility and enable incremental adoption. Coinbase has formed an independent advisory board of cryptographers and quantum experts to guide risk assessment and implementation. Ethereum layer-2s such as Optimism are also exploring post-quantum upgrades.
Solana: Solana’s approach is more experimental. Developers introduced early designs for “Winternitz Vault,” offering an optional, smart-contract vault secured by hash-based one-time signatures to reduce quantum risk without a protocol overhaul.
Overall, the quantum threat is moving from theory to action via teams, proposals, and tools—an early stress test rather than a single coordinated defense.
Neutral
该报道核心是“量子威胁”带来的长期安全迁移与各链分歧：比特币仍偏辩论与渐进提案（如 BIP360、Hourglass），以太坊与 Coinbase 已在推进分阶段后量子路线图，Solana 则以可选的量子安全金库做实验。由于量子攻击被普遍视为更偏中长期风险，短期内更可能体现在叙事与预期变化上，而非立刻引发链上不可逆的技术失效，因此整体对市场的直接冲击有限，更符合“neutral”。
从交易角度看：
- 短期：市场可能对“安全性不确定性/政策迁移成本”进行定价，带来波动，但文中没有给出量子计算已能破解主网密钥的硬性证据，更多是准备动作。
- 中长期：若后量子迁移需要持续迭代并引入新机制，可能推高相关开发、生态与合规讨论的热度，并改变投资者对基础层与应用层风险偏好的排序。类似历史上对“加密算法迁移/安全更新”的讨论（例如多次围绕关键协议升级的预期博弈）常见模式是：发布路线图时情绪先行，真正的估值重估通常发生在更明确的可验证里程碑出现之后。
结论：这是对未来风险的“前置应对”，更偏风险管理与技术路线竞争，短期难以形成一致方向的强多/强空催化，因此判断为 neutral。