Final answer:
Passwords, passphrases, and PINs are examples of authentication methods used in computer security.
Step-by-step explanation:
Passwords, passphrases, and PINs are examples of authentication methods used in computer security.
A password is a secret word or phrase that must be entered to gain access to a system. A passphrase is similar, but longer and more complex than a password. A PIN (Personal Identification Number) is a numeric password used to authenticate a user.
By using these authentication methods, you can make sure that only authorized users can access sensitive data or carry out particular actions within a system. Secure PINs, unique passphrases, and strong passwords can significantly improve security and prevent unauthorized access.