Passwords are a form of authentication mechanism similar to locks and keys. For the protection of certain essential data creation and the safety of the software, we must use lock. Password is the name given to this symbolic lock.
Password policy: A password policy is an ICT policy that governs the proper management of users' information . The following considerations are included in the policy:
• length and form of the password
• duration of the password
• acceptance of the password
• password collection process
• password implementation
• password changing strategies]