Endpoint Detection and Response (EDR). With Endpoint Detection and Response (EDR), enterprises rely on endpoint data as a means to trigger cybersecurity incidents. As cybercriminals and their tactics have become more sophisticated, the time to identify and contain breaches has only increased. Cortex Extended Detection and Response (XDR) goes beyond the traditional EDR approach of using only endpoint data to identify and respond to threats by applying machine learning across all your enterprise, network, cloud, and endpoint data. This approach enables you to quickly find and stop targeted attacks and insider abuse and remediate compromised endpoints.