The term computer security denotes the combined mechanism and processes which are employed for the protection and preservation of an individual's information from being collapsed, corrupted or exposed for an illicit purpose. Computer security is a fundamental domain of computer technology that is more commonly referred to as information security with reference to computer and networks. The prime purpose of information security is the security of information and property from unauthorized access or being corrupted, while enabling the information and data to remain conveniently accessible and productive for its targeted users.