Where should the access key for configuring Microsoft Defender for Identity sensors be obtained from?

The access key for configuring Microsoft Defender for Identity sensors is retrieved from the Microsoft Defender for Identity management portal. This is the correct process because the management portal serves as the centralized location where administrators can manage their instances of Microsoft Defender for Identity, including generating and obtaining necessary credentials like access keys.

The access key is essential for the sensor to communicate securely with the service, ensuring that the configuration is done properly and securely. This method of retrieval aligns with best practices in configuration management, where sensitive keys are managed in controlled environments rather than being generated or stored locally on servers, thus reducing possible security vulnerabilities.

Retrieving the access key from the management portal ensures that it is up-to-date and valid and provides better oversight of configuration changes, which is critical in maintaining the security posture of an organization.