What type of control would likely use an alarm system?

The alarm system is most closely associated with detection controls because its primary function is to identify and alert individuals to unauthorized activities or breaches in security. When an alarm is triggered, it serves as an immediate indication that something may be wrong, thus enabling a quick response to investigate or mitigate a potential threat.

Detection controls are essential for providing awareness regarding security events, and an alarm system embodies this concept by monitoring environments and notifying personnel of any suspicious or illegal actions. This aspect of detection helps organizations maintain security and ensure that they can respond appropriately to incidents as they occur.

While preventative controls aim to stop security incidents before they happen, deterrent controls are focused on discouraging potential offenders through visible security measures. Compensatory controls, on the other hand, provide alternative safeguards when primary controls are lacking. None of these, however, highlight the reactive detection functionality that an alarm system provides.