Network Defense Essentials (NDE) 2026 – 400 Free Practice Questions to Pass the Exam

Detection controls are designed specifically to identify and alert on security breaches or unauthorized access. They play a crucial role in security systems by monitoring for suspicious activity and, when such activity is detected—such as an unauthorized entry—trigger an alarm to inform security personnel or system administrators. This type of control does not necessarily prevent an intrusion from occurring but is vital for timely awareness and response to security incidents.

Detection controls can include various tools and techniques such as intrusion detection systems (IDS), surveillance cameras, motion detectors, and alarms that signal when a breach occurs. Their primary function is to provide a swift response to potential threats, thereby reducing the potential for damage or loss as well as enhancing overall security posture.