
By discovering, prioritizing, and remediating software vulnerabilities and misconfigurations you can proactively build a secure foundation for your environment.

Here are some descriptions of those high level features(as referenced here):


It's also a software that you can download directly from the Microsoft Store but note that you'll need to sign in from your Microsoft account to activate the associated protection.As you can see, Microsoft Defender for Business (as part of M365 Business Premium) includes almost all features that come with plan 2. It is important to note that you do not necessarily need Microsoft Defender on your Windows PC thanks to Windows Security, but it could serve as a useful one-stop shop for protection across all your supported devices. Just launch it from the Start menu and sign in with the personal Microsoft account you use for Microsoft 365. If you have an active Microsoft 365 subscription and have already installed the Microsoft 365 apps, then the Microsoft Defender app will be automatically installed for you with the next update. That means that when you install the Microsoft 365 apps on your Windows device, the Microsoft Defender app will automatically be installed for you along with the other apps. Starting in late February of 2023, the Microsoft Defender app will be included in the Microsoft 365 installer.

Interestingly, a Microsoft support document mentions this change with little fanfare and notes that Microsoft Defender will soon be installed on your PC just like a regular Microsoft 365 app: Indeed, some Twitter users have already been caught by surprise seeing Microsoft Defender automatically installed on their PC.
