Final answer:
The process of confirming a user's identity by using a known value such as a password, a smart card, or fingerprint is called authentication.
Step-by-step explanation:
The process of confirming a user's identity by using a known value such as a password, a smart card, or fingerprint is called authentication.
Authentication is an important step in ensuring the security of digital systems and protecting sensitive information. It verifies that the person accessing the system or data is indeed who they claim to be.
For example, when logging into a website, you may be asked to enter your username and password. The website then checks if the entered credentials match the stored information to authenticate your identity.