Which group is characterized by legitimate users who misuse their access to the system?

The group characterized by legitimate users who misuse their access to the system is insiders. Insiders are individuals within an organization, such as employees or contractors, who have authorized access to the organization's systems and data. While they typically have permissions to perform certain functions, they may exploit their access for personal gain or malicious purposes, which can lead to data breaches or misuse of information.

This abuse of access by insiders is particularly concerning because they are already trusted by the organization, which makes it easier for them to bypass typical security measures that protect against external threats. Their familiarity with the systems can also make their actions harder to detect, allowing them to potentially cause significant harm before being discovered.

Understanding the threat posed by insiders is crucial for the development of effective information security policies and practices. Organizations must focus on comprehensive monitoring, training, and access controls to mitigate the risks presented by insiders.