There has been recent branding changes over the last month , namely: Microsoft Defender is delivered in two tailored experiences, Microsoft 365 Defender for end-user environments and Azure Defender for cloud and hybrid infrastructure.

Microsoft 365 Defender


Figure 1 Microsoft 365 Defender


Microsoft 365 Defender/Microsoft Defender for Office 365 was formerly known as Office 365 Advanced Threat Protection (ATP).

You may see the old name still in use in the product (including its data connector in Azure Sentinel) for a period of time. 

Microsoft Defender for Endpoint is the new name for Microsoft Defender ATP.

Branding changes to unify the Microsoft 365 Defender technologies:

  • Microsoft 365 Defender (previously Microsoft Threat Protection).
  • Microsoft Defender for Endpoint (previously Microsoft Defender Advanced Threat Protection).
  • Microsoft Defender for Office 365 (previously Office 365 Advanced Threat Protection).
  • Microsoft Defender for Identity (previously Azure Advanced Threat Protection).

Note: you’ll see Microsoft Defender Antivirus being discussed with Microsoft Defender for Endpoint. Microsoft Defender Antivirus is the next-generation protection component of Microsoft Defender for Endpoint. You can find more details by following this link:
Next-generation protection in Windows 10, Windows Server 2016, and Windows Server 2019 - Windows security | Microsoft Docs

Azure Defender


Azure Defender is an evolution of the Azure Security Center threat protection capabilities and is accessed from within Azure Security Center. As you can see, the capability for defending Servers is now Azure Defender for Servers (previously Azure Security Center Standard Edition).