XDR (Extended Detection and Response) is an integrated cybersecurity platform that collects, correlates, and analyzes data from multiple security layers - such as endpoints, networks, servers, and cloud environments. By unifying threat detection, investigation, and response capabilities across these diverse sources, XDR provides security teams with a holistic view of potential threats and streamlines incident response. Unlike traditional security solutions that operate in silos, XDR breaks down barriers between tools, enabling faster detection of sophisticated attacks and more effective remediation. This approach helps organizations reduce alert fatigue, improve operational efficiency, and enhance overall security posture by providing context-rich insights and automated responses.