The Endpoint Detection and Response (EDR) is a modern cybersecurity-focused answer that aids in monitoring endpoint devices perpetually for cyber threats, investigating them, and responding to them without any delay. EDR solutions enable detection of malware infection, unauthorized access, and even ransomware attacks using behavioral analysis, machine learning, and threat intelligence which help in identifying malicious activities and providing full coverage on endpoint activities. EDR also helps organizations to prevent breaches to sensitive data, reduce the average time an attacker resides undetected within the network, and increase overall security posture. EDR also facilitates enhanced SIEM-based threat hunting and forensic investigation increasing the efficiency of these processes, making EDR a vital element of modern cybersecurity defense systems.