What term describes a disgruntled employee who may pose a security threat?

The term "Malicious Insider" accurately describes a disgruntled employee who may pose a security threat. Such individuals, due to their access to sensitive information and systems, can exploit their position to harm the organization. They may have grievances that lead to malicious behaviors, including stealing data, sabotaging operations, or leaking information to unauthorized parties.

This term specifically highlights the potential for someone within the organization—who has inside knowledge and access—to engage in harmful activities. Recognizing the behaviors and motivations of malicious insiders is crucial for maintaining a secure environment, as these individuals can often evade security measures that are designed to protect against external threats.

In contrast, the other terms do not accurately capture the concept of a disgruntled employee posing a security threat. For instance, a "Subject Matter Expert" typically refers to someone with specialized knowledge important for their role and does not imply any malicious intent. Similarly, an "Overqualified Candidate" refers to a person who may possess more qualifications than what is necessary for a role, which doesn't directly relate to their potential as a security threat. Lastly, "Cleared Laboratory" indicates a facility with security clearance and does not pertain to employee behavior or intent.