A security incident represents a violation or imminent threat of violation of computer security policies, acceptable use policies, or standard security practices. Such an event can encompass unauthorized access to systems or data, the disruption of services, or the compromise of information integrity. For example, the detection of malware on a critical server, a successful phishing attack resulting in credential theft, or a denial-of-service attack that renders a website inaccessible would all constitute instances requiring focused attention.
Understanding the nature of these events is paramount for maintaining organizational resilience. Precise identification allows for the swift implementation of appropriate response measures, minimizing potential damage and facilitating timely recovery. Furthermore, careful analysis of these occurrences provides valuable insights for improving preventative security controls and reducing the likelihood of future events. Historically, a clear understanding and definition have evolved in tandem with the increasing sophistication and frequency of cyber threats.