Sentinels are individuals or systems tasked with monitoring, observing, and protecting a particular area, system, or process. In the context of security, a Sentinel may refer to a security guard, surveillance operator, or an automated system designed to detect and respond to threats. Their primary responsibilities often include monitoring for suspicious activities, ensuring safety protocols are followed, and reporting or responding to incidents. The specific duties can vary depending on the industry, such as physical security, information technology, or even roles in video games. Sentinels play a critical role in maintaining the safety and integrity of their assigned environments.