LOA 的四个级别

Levels of Assurance

What are Levels of Assurance (LOA)? 什么是担保级别？

1 - Basic Identity

用户名 This level deals with a username, User Principle Name (UPN), or email address alone.

2 - Proven Identity

用户名 + 密码 This level requires that the user prove their identity by authenticating with a password.

3 - Proven ID with multi-factor authentication

除了密码以外，还须提供另外一认证要素，好比一次性密码 In additional to a password the user must prove their identity with another factor of authentication such as a one time password (OTP).

4 - Strong ID with physical token multi-factor authentication

使用物理认证方法，好比指纹识别或虹膜识别等生物测定。 This level requires that a user authenticate using a physical method such as biometrics.

https://support.symantec.com/us/en/article.info4272.html