Which type of threat actor could intentionally delete key files after being given access to sensitive systems?

The identification of the insider threat as the correct answer hinges on the unique characteristics of this type of threat actor. An insider threat refers to individuals within an organization, such as employees or contractors, who have authorized access to the organization's systems and data. Because they possess legitimate credentials, insiders can navigate the internal environment and may have knowledge of critical files and systems.

In scenarios where an insider has malicious intent, they may exploit their access to deliberately delete or manipulate key files, thereby inflicting harm on the organization. This action can be motivated by various factors, such as personal grievances, financial incentives, or a desire to cause disruption. Their familiarity with the systems allows them to carry out these malicious acts with greater ease and discretion compared to external threat actors.

In contrast, while other types of threat actors may also cause harm, their methods of operation and access levels differ significantly. Hacktivists typically seek to make a political statement or raise awareness, organized crime groups focus on financial gain often through fraud or theft but might not operate within the organization, and competitors may engage in corporate espionage but would not have the legitimate access that insiders possess to veer towards outright data deletion. Thus, the insider threat stands out as the most fitting explanation for the scenario presented