uwierzytelnianie in English:

Many cloud companies now offer an added layer of security called 'two-factor authentication', where users have to enter a code sent to their mobile phone as well as a password to get into their accounts.

authentication- that's confirmation that someone is who they say they are. And the company actually uses two steps to do this.

I can’t give you the information without authorization from the manager.

His job is to manage credit authorization.

For that reason the outcome of the primary nursing care requirement authorization has to relate to the amount of nursing care required.