To ensure security, passwords must be used carefully. Changing
your password is one way to ensure security.
Some of the reasons for which you must change your password include:
Your password expired.
You forgot your password.
You suspect your password might have been compromised.
Regardless of the reason, when you change your password, it must
meet the requirements determined by the administrator for your system.
Passwords
A password is a string of characters that is used to authenticate
your access to a system. A user ID and password are the two elements
which grant you access to a system.