What is the CIA Triad? | UpGuard

This article explains the CIA triad—confidentiality, integrity, and availability—as the foundation of information security, detailing supporting controls (e.g., access control, encryption, IDS, redundancy, incident response) and the importance of non-repudiation. It highlights regulatory drivers, modern challenges like IoT and DDoS, and trade-offs among security principles, advocating for risk-based decision-making and consideration of extensions beyond the traditional triad.