Forum Discussion
Defender for Identity - Update the Access Key on Domain Controller
The access key is used only for the initial installation, afterwards all the communication is encrypted on both sides using a certificate created as part of the installation.
If you had to create a new workspace (for a new tenant), there is no way around. You'll need to remove the sensor and reinstall it from a "freshly" downloaded installation package (from the portal, for the correct workspace, as it contains the correct configuration details).
Removing the sensor and reinstalling it again doesn't require restarting the server.
MicrosoftThe access key is used only for the initial installation, afterwards all the communication is encrypted on both sides using a certificate created as part of the installation.
If you had to create a new workspace (for a new tenant), there is no way around. You'll need to remove the sensor and reinstall it from a "freshly" downloaded installation package (from the portal, for the correct workspace, as it contains the correct configuration details).
Removing the sensor and reinstalling it again doesn't require restarting the server.