Operating System Security

Operating systems (OSs) are prone to several threats, including viruses, malware, snooping, spoofing, and denial of service. The three main aspects of OS security are confidentiality or prevention of theft, integrity or prevention of damage, and availability or prevention of service denial (Heiser, 2008).

It is worth noting that users pose one of the biggest threats to security:

The weakest point within any system is often the end user. It comes as no surprise, therefore, that a large percentage of security breaches over the last decade have come from the inside of an organization, often unknowingly by the user… Whether through careless actions or by deliberate intent, this is something that should be considered first and foremost in securing an OS. (Carnaghan, n.d.)


Heiser, G. (2008). Security: An advanced introduction. University of New South Wales (UNSW). http://www.cse.unsw.edu.au/~cs9242/08/lectures/06-security.pdf

Carnaghan, I. (n.d.). Operating systems security: Protection measures analysis. https://www.carnaghan.com/2015/10/operating-systems-security-protection-measures-analysis/