Security services that respond to activated alarms are known as "alarm response security." An on-duty security officer hears a distress signal and promptly reports to the scene to take appropriate action. The likelihood of future losses can be drastically lowered by taking this swift  actions.

An on-site security guard is a professional who works directly with the facility owner to provide security services. The on-site security guard will be responsible for keeping the premises secure and ensuring that employees, visitors, and clients are safe from harm.