
Computer Security by S.A. Hewathanthrige essay
Why Organizations need security? As discussed above, the organizations in this century more increasingly depend on data communication for the daily business communication, database in
formation retrieval and the internetworking of LAN's. This led the management into more consideration on converting manual operations into computerized systems and relay on them. In fact, organizations then considered that "....many potential hazards such as fraud, errors, lost data, breaches of privacy and the disastrous events that can occur in a data communication" (3) The above consideration statement was considered about fifteen years ago but still holds valid reasons. Computer and network address three requirements:
1. Security Requires that the in
formation in a computer system only be accessible for reading by authorized personnel or parties. This type of access includes printing, displaying , and other
form of disclosure, including simply revealing the existence of an object.
2. Integrity Requires that the computer system access can vibe modified only by authorized personals. Modification includes writing, chaining, changing status, deleting, and creating.
3. Availability Requires that the computer system access are available to authorized personnel.