The CIA Triad is one of the basic foundations of cybersecurity. It stands for confidentiality, integrity, and availability. These three ideas help explain what organizations are trying to protect when they secure information and systems.
Confidentiality focuses on keeping information away from people who are not authorized to see it. Organizations can protect confidentiality through things like encryption, strong passwords, multifactor authentication, and access controls. This matters because sensitive information can include financial records, personal data, medical information, or business information that could cause serious problems if it is exposed.
Integrity is about keeping information accurate and trustworthy. If someone changes information without permission, that information may no longer be reliable. For example, unauthorized changes to grades, payroll records, medical information, or system settings could create serious problems. Access controls, backups, version control, and other safeguards can help protect the integrity of information.
Availability means making sure authorized users can access systems and information when they need them. This is especially important for hospitals, banks, utilities, and other organizations where downtime can affect a large number of people.
Authentication and authorization also support these security goals. Authentication verifies who a user is, while authorization determines what that user is allowed to access or do. Someone may be able to log in to a network successfully but still not have permission to view payroll records or other sensitive information.
The 2021 Colonial Pipeline ransomware attack helped me understand why availability matters so much. Colonial Pipeline shut down pipeline operations after discovering the attack, and the FBI later confirmed that DarkSide ransomware was responsible for compromising the company’s networks. Because Colonial Pipeline is part of the nation’s critical infrastructure, the effects went beyond the company itself.
One detail that stood out to me is that the ransomware did not simply take control of the physical pipeline and shut it down. Colonial made the decision to stop operations in response to the cyber incident. That shows how a cybersecurity problem can lead to larger operational decisions and real-world consequences.
Organizations cannot prevent every cyberattack, but they can reduce their risk. Multifactor authentication, access controls, monitoring, system updates, backups, and tested recovery plans all provide different layers of protection. The CIA Triad is useful because it shows that cybersecurity is not just about keeping information private. Information also has to stay accurate and be available when people need it.
References
Chai, W. (2022, June 28). What is the CIA triad_ definition, explanation, examples – TechTarget.Pdf. Google Docs.https://drive.google.com/file/d/1898r4pGpKHN6bmKcwlxPdVZpCC6Moy8l/view
Federal Bureau of Investigation. (2021, May 10). FBI Statement on Compromise of Colonial Pipeline Networks. Federal Bureau of Investigation. https://www.fbi.gov/news/press-releases/fbi-statement-on-compromise-of-colonial-pipeline-networks
Editor, C. C. (n.d.). authentication – Glossary | CSRC. Csrc.Nist.Gov. Retrieved September 6, 2026, from https://csrc.nist.gov/glossary/term/authentication
Editor, C. C. (n.d.). authorization – Glossary | CSRC. Csrc.Nist.Gov. Retrieved September 6, 2026, from https://csrc.nist.gov/glossary/term/authorization
US Department of Energy. (2021). Colonial Pipeline Cyber Incident. Energy.Gov. https://www.energy.gov/ceser/colonial-pipeline-cyber-incident