Physical Security Personnel Security Administrative Security Technical Security Physical security covers the precautions necessary to prevent disaster caused by flood, fire, theft, loss of power, and other unexpected environmental interruptions that can spell doom to the mission of computing systems and databases. Personnel security involves the responsibility of end users utilizing the applications accessing the data. End users should perform their tasks with integrity, and at a level of expertise in security procedures matching the area of sensitivity. Proper security must be an on-going practice.
Administrative security is the area that supports the personnel security.
Proper operating procedures must be established to cover all possible situations. Such procedures form the support for initial training and day to day operations. Technical security measures are the safeguards that protect the equipment, databases and files. Limiting access on files to only those required, i.e. read only access when write permission is not required. Screen blankers that blacken the screen or otherwise overwrite the display after a specified length of time will help protect data from prying eyes.