公司内部的网站，都启用的MFA认证，就是你输入你自己登录的密码后，还会弹出一个框，让你输入6位数字。这次自己设置一次MFA。
我是对着这个视频来操作。
https://www.youtube.com/watch?v=QfOFhQb8Wyk
企业MFA，实物就是一个u盘，打开一次，就更改一次数字
物理安全。现在大家都使用pc端或者手机端。这次我并不是用google的，而是自己搞了一个：keepassXC
MFA (also called two-factor authentication or 2FA) is the practice of requiring additional authentication factors beyond the standard username-password combination most authentication mechanisms require.
TOTP (Time-based, One-Time Password) is a form of MFA that uses a randomly generated code as an additional authentication token. TOTP MFA codes are generally created via a smartphone app (e.g. Google Authenticator), so it falls under the “something you have” classification.
https://jumpcloud.com/blog/totp-mfa#cookie-accept
我的理解MFA就是TOTP协议的一个实现。
