Identity Assurance Levels (IAL)

Identity Assurance Level or IAL refers to the levels of confidence or assurance that a system can have in a user’s identity and credentials. There are three levels used as measurement in the identity proofing process:

  1. Some confidence, completed via self assertion, often a password
  2. High confidence, two factors of authentication
  3. Very high confidence, a combination of two factors of authentication with an added requirement of a physical device and cryptographic key.