Sentinels are individuals or systems that monitor and protect a specific area or group. They serve as guardians, often watching for potential threats or changes in the environment. In various contexts, such as wildlife conservation or cybersecurity, sentinels play a crucial role in ensuring safety and stability. In technology, Sentinels can refer to software or hardware that detects anomalies or unauthorized access. These systems alert users to potential risks, helping to prevent data breaches or other security issues. Overall, sentinels are essential for maintaining vigilance and safeguarding important assets.