Protection of computer systems from information disclosure, theft or damage
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An example of physical security measure: a metal lock on the back of a personal computer to prevent hardware tampering.
Computer security, cybersecurity, digital security or information technology security (IT security) is the protection of computer systems and networks from attacks by malicious actors that may result in unauthorized information disclosure, theft of, or damage to hardware, software, or data, as well as from the disruption or misdirection of the services they provide.[1][2]
The field is significant due to the expanded reliance on computer systems, the Internet,[3] and wireless network standards such as Bluetooth and Wi-Fi. It is also significant due to the growth of smart devices, including smartphones, televisions, and the various devices that constitute the Internet of things (IoT). Cybersecurity is one of the most significant challenges of the contemporary world, due to both the complexity of information systems and the societies they support. Security is of especially high importance for systems that govern large-scale systems with far-reaching physical effects, such as power distribution, elections, and finance.[4][5]
While most aspects of computer security involve digital measures such as electronic passwords and encryption, physical security measures such as metal locks are still used to prevent unauthorized tampering.
^Schatz, Daniel; Bashroush, Rabih; Wall, Julie (2017). "Towards a More Representative Definition of Cyber Security". Journal of Digital Forensics, Security and Law. 12 (2). ISSN 1558-7215.
^Computer security at the Encyclopædia Britannica
^Tate, Nick (7 May 2013). "Reliance spells end of road for ICT amateurs". The Australian.
^Kianpour, Mazaher; Kowalski, Stewart; Øverby, Harald (2021). "Systematically Understanding Cybersecurity Economics: A Survey". Sustainability. 13 (24): 13677. doi:10.3390/su132413677. hdl:11250/2978306.
^Stevens, Tim (11 June 2018). "Global Cybersecurity: New Directions in Theory and Methods" (PDF). Politics and Governance. 6 (2): 1–4. doi:10.17645/pag.v6i2.1569. Archived (PDF) from the original on 4 September 2019.
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