International Journal of Innovative Science Engineering and Technology (IJISET)
Password is a secret word or string of character that is used for user authentication to prove identity or for access approval to gain access to a resource. Basically, password is used in every interaction between user and information system. Unfortunately, with such a central role in security, passwords are prone to attacks. Password attack is a method of gaining unauthorized accessed to one's computer or to a personal account. This attack reduces the convenience of authorized users. Different types of methods and protocols are used to reduce such attacks and prevent user's data to be accessed from unauthorized users.