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Information security is the practice of protecting information by mitigating information risks. It is part of information risk management. [1] It typically involves preventing or reducing the probability of unauthorized or inappropriate access to data or the unlawful use, disclosure, disruption, deletion, corruption, modification, inspection, recording, or devaluation of information.
A basic concept of security management is information security. The primary goal of information security is to control access to information. The value of the information is what must be protected. These values include confidentiality, integrity and availability. Inferred aspects are privacy, anonymity and verifiability.
Managing information security in essence means managing and mitigating the various threats and vulnerabilities to assets, while at the same time balancing the management effort expended on potential threats and vulnerabilities by gauging the probability of them actually occurring.
The Certified Information Systems Auditor Review Manual 2006 by ISACA provides this definition of risk management: "Risk management is the process of identifying vulnerabilities and threats to the information resources used by an organization in achieving business objectives, and deciding what countermeasures, if any, to take in reducing risk to an acceptable level, based on the value of the ...
Information security standards (also cyber security standards [1]) are techniques generally outlined in published materials that attempt to protect a user's or organization's cyber environment. [2] This environment includes users themselves, networks, devices, all software, processes, information in storage or transit, applications, services ...
Hal Varian presented three models of security using the metaphor of the height of walls around a town to show security as a normal good, public good, or good with externalities. Free riding is the end result, in any case. Lawrence A. Gordon and Martin P. Loeb wrote the "Economics of Information Security Investment". [1]
The Parkerian hexad is a set of six elements of information security proposed by Donn B. Parker in 1998. [1] [2] The Parkerian hexad adds three additional attributes to the three classic security attributes of the CIA triad (confidentiality, integrity, availability).
An example of a physical security measure: a metal lock on the back of a personal computer to prevent hardware tampering. Computer security (also cybersecurity, digital security, or information technology (IT) security) is the protection of computer software, systems and networks from threats that can lead to unauthorized information disclosure, theft or damage to hardware, software, or data ...