问HN：为什么我可以在macOS上使用密码钥匙而不需要生物识别？
这可能是个愚蠢的问题，但我注意到，当我使用我的Mac电脑时，无论是打开状态还是配合带有Touch ID的魔术键盘，我都会被提示扫描我的指纹以使用密码钥匙。然而，每当我使用外接显示器和没有Touch ID的键盘时，我只需在密码钥匙对话框中按“继续”即可。
我明白密码钥匙是绑定在设备上的，而登录设备本身就是某种认证，但对我来说，似乎有一个如此容易绕过的安全步骤，干脆就不问我的指纹也没关系。
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So this might be a stupid question but i notices that when i use my mac open or with a magic keyboard with a touchID field i get prompted to scan my finger to use a passkey. But whenever i use a secondary monitor and a non touchID keyboard all i need to do is press "continue" in the passkey dialoge.<p>I get that passkeys are bound to the device and being logged into it is itself some sort of auth it just seems wierd to me to have a security step that is so easy to circumvent that they might as well not ask for my fingerprint at all.