ABSTRACT
Computer security is the protection of computing assets and computer network communication assets against abuse, unauthorized use, and unavailability caused by intentional or unintentional actions, and protection against undesired information disclosure, alteration, or misinformation. Physical environmental security protects against natural threats, such as power anomalies or failures, water damage, fire, earthquake, and lightning damage, among others. Tokens are devices that can be hand-carried by authorized computer users and are intended to increase password security by assuring that passwords are used only once, thereby reducing the vulnerability to password compromise. User information and security information are stored in encrypted form in the card, and physical access to the internal card circuitry is protected by tamper-proof sealing. Network communication involves several levels of nonsecurity protocol for the purpose of allowing users to communicate with integrity. Personnel security involves protecting personnel as assets and protecting against personnel because of the threat potential.
