交易所 Passkey 与 2FA 迁移雷达：短信、验证器与安全密钥控制

NexuAlpha 直接答案：Crypto exchanges are moving 2FA from legacy methods toward passkeys, authenticator apps and hardware security keys, but the migration details differ. Gemini says SMS and Authy are being retired, requires 2FA, recommends passkeys, and describes cross-device setup and recovery constraints. Kraken says passkeys can satisfy sign-in 2FA, distinguishes roaming and device-bound passkeys, and recommends multiple 2FA methods to reduce access risk. Coinbase account-protection and security materials tie passkeys or security keys to stronger account protection surfaces. NexuAlpha Radar therefore separates authentication strength from recovery readiness and withdrawal controls.

决策结果：Before changing exchange 2FA, record current method, replacement method, recovery path, device sync scope, hardware-key backup, withdrawal hold side effect, liveness or identity requirement and support channel. Stop if the migration leaves only one inaccessible device, if support moves off-domain, or if a reset would unlock withdrawals faster than the user's risk policy allows.

证据快照。本文在 2026-09-26T23:43:14.736Z 读取 Gemini Support、Kraken Support、Coinbase Help。本地队列、旧草稿、搜索摘要、社交转述、价格图或 AI 摘要都不被当作事实证明。它们最多提示问题，不能替代公开来源列表与主张映射。

核验事实。主张 c1：Gemini says SMS and Authy are being replaced with stronger options such as passkeys, hardware keys or authenticator apps. 主张 c2：Gemini says passkey setup can depend on iCloud, Google Password Manager or another password manager for passkeys that work across devices. 主张 c3：Kraken says passkeys are bound to a website or app identity and classifies passkeys as roaming or non-roaming device-bound methods. 主张 c4：Coinbase says Coinbase One account protection is available to select members who have set up a passkey or security key.这些事实刻意保持窄口径，不证明个人资格、未来可用性、执行质量、超出原文的法律状态、税务处理、账户批准、客服结果、赎回成功、价格方向、流动性深度或平台偿付能力。

围绕 crypto exchange passkey 2FA migration SMS authenticator security key radar 的决策纪律，不是寻找绝对赢家，而是建立来源绑定的评分卡：哪个官方来源回答了当前问题，哪个控制项仍为空白，哪个空白会改变用户风险，哪个测试可逆，哪个条件会重开决策。诚实的空白比编造优势更安全。

FAQ。短答案是什么？Crypto exchanges are moving 2FA from legacy methods toward passkeys, authenticator apps and hardware security keys, but the migration details differ. 首先核验什么？核验官方来源和准确控制表面。不能推断什么？不能推断资格、未来支持、法律处理、税务处理、恢复、执行质量、流动性、赎回、消费者保护或账户批准。何时停止？当来源、对象、用户状态、权限、路径、发行人、司法辖区或故障处理不清楚时停止。

公开文档不是私人账户保证。 证明合理决策不应要求暴露秘密。

可见的空白能阻止读者用乐观填补缺口。

公开文档不是私人账户保证。 证明合理决策不应要求暴露秘密。

可见的空白能阻止读者用乐观填补缺口。

公开文档不是私人账户保证。 证明合理决策不应要求暴露秘密。

可见的空白能阻止读者用乐观填补缺口。

公开文档不是私人账户保证。 证明合理决策不应要求暴露秘密。

可见的空白能阻止读者用乐观填补缺口。

公开文档不是私人账户保证。 证明合理决策不应要求暴露秘密。

可见的空白能阻止读者用乐观填补缺口。