Security Problem in Operating System:
Definition and Explanation:
Operating systems provide various mechanisms to protect data and programs. A system is secure if and when the resources are used and accessed as intended under all circumstances. Security is never assured to be one hundred percent. Security violations are either maliciously intentional or accidental.
Some examples of malicious accessing are as follows:
- Unauthorized reading of data
- Unauthorized modification of data
- Unauthorized destruction of data
Security measures must be taken to both physical and human levels. For the physical level, computer system's sites need to be physically secured from intruders. On the human level, users need carefully be given authority because the user may give access to an intruder.
Carelessness at a high level of security (physical or human) will lead to the need of strict low-level (operating system) security measures. A considerable effort is required to prevent any form of accident or fraud. On the other hand, the system hardware must provide protection to implement security features. Operating System security is implemented in
various levels.
