The new Microsoft Defender ATP for Mac system extension-based implementation is currently only applicable to devices running macOS version 10.15.4 or later and in InsiderFast MAU ring. Once macOS 11 Big Sur is generally available, the new system extensions-based implementation will be activated on all devices running macOS 11. Prior to the general availability of macOS 11 Big Sur, the new system extensions-based code path can be activated on devices running macOS Catalina version 10.15.4 or later and registered for the InsiderFast MAU update channel. The system extensions-based version of Microsoft Defender ATP for Mac will be delivered to all macOS devices via the existing Microsoft AutoUpdate (MAU) channel. It is able to detect and analyze threats and allow administrators to take prompt action with centralized management.
Defender Advanced Threat Protection (ATP) is a service which is integrated across the entire Windows security stack to protect against malicious software.