Eliminate computer downtime Computer downtime has many potential causes. Novice users often make accidental changes to configurations. Malicious changes are made in attempt to breach security or to prevent operation of the computer or network. Control configurations and settings Users should be unable to introduce unauthorized or undocumented software. They should also be prevented from changing system configurations.
Activity is monitored and logged in order to track the source of unauthorized activity.
There are some common security attributes that should be present in any system if it is to be considered secure. These principals emphasize identification, prevention and accountability. Identification and authentication of users Users should have an account number or user name, used in tandem with another means of authentication, such as a secret password. Passwords should be changed regularly, and anytime there is the possibility of exposure of passwords. In addition, failed attempts to log on should be monitored in order to detect unauthorized access attempts.