Maintain your Microsoft Defender for Business environment

After you have set up and configured Defender for Business, your next step is to prepare a plan for maintenance and operations. Use this article as a guide to start preparing your plan.

Area Description
Microsoft 365 administration
(also referred to as tenant administration)
Tenant administration includes tasks that your administrators (also referred to as admins) perform in the Microsoft 365 admin center (https://admin.microsoft.com) (and potentially other admin centers, such as the Exchange admin center).

As new employees come in and other employees leave, it's important to manage user accounts and devices. Your admins can add or remove users, reset passwords, assign roles and permissions, and more. These kinds of tasks (and more!) are listed in the Defender for Business tenant administration guide.
Security administration Security administration includes tasks that your security administrators (also referred to as security admins) perform in portals, such as:
- The Microsoft 365 admin center (https://admin.microsoft.com)
- The Microsoft 365 Defender portal (https://security.microsoft.com)
- The Microsoft Intune admin center (https://intune.microsoft.com; if you're using Intune)

These kinds of tasks include defining or editing security policies, onboarding or offboarding devices, and so forth, and are listed in the Defender for Business security admin guide.
Security operations Security operations (also referred to as SecOps) and includes tasks that your security team performs in the Microsoft Defender portal (https://security.microsoft.com).

As threats are detected, those threats must be reviewed and addressed. Regular antivirus scans should occur on devices, and you can initiate scans when needed. In addition, you can run automated investigations on devices that have a high risk level or detected threats. These kinds of security tasks (and more!) are listed in the Defender for Business security operations guide.

See also

Set up and configure Defender for Business