Which cyber event category involves unauthorized privileged access to a DoD system?

The category that involves unauthorized privileged access to a Department of Defense (DoD) system is categorized as a root level intrusion. This classification signifies a breach where an attacker gains access at the highest or most privileged level of a system, allowing them significant control and the ability to manipulate or extract sensitive data.

Root level intrusion is particularly critical in the context of the DoD due to the sensitive nature of the information and systems involved. When unauthorized access occurs at this level, it poses severe risks to national security and the integrity of defense operations. The distinction of this category emphasizes its seriousness and the potential impact of such an event, which goes beyond mere unauthorized access to encompass full control over systems, akin to that of a system administrator.

In contrast, other categories, such as unauthorized access, information breach, or network attack, may involve different levels of access or types of threats that do not specifically indicate in-depth control inherent in a root level intrusion. Therefore, this classification serves to provide a clear understanding of the gravity and potential ramifications of such unauthorized actions within critical DoD systems.