Windows 10/11 Enterprise E5 includes Windows 10/11 Enterprise E3 plus Microsoft Defender Advanced Threat Protection (ATP). Microsoft Defender ATP is a unified endpoint security platform and enables enterprise customers to protect, detect, investigate, and respond to advanced attacks and data breaches. It is built-in, cloud powered, applies Artificial Intelligence to automate security incidents and leverages the Microsoft Intelligent Security Graph to integrate detection and exploration with other Microsoft Threat Protection services*. *some separate subscriptions may be required