Validate new identity sensors through status, device timeline, and identity data

Keep this document to one review outcome: Validate new identity sensors through status, device timeline, and identity data. Only the official source and traced locations below supply facts. Confirm applicability before acting.

Source fact:

The official Validate sensor deployment on domain controllers from Microsoft supports the following bounded statements:

• A first sensor activation can take up to an hour to show as Running, while subsequent activations can appear within five minutes. The research record locates this support at Sensor status validation.
• Microsoft directs administrators to confirm Defender for Identity events on the device timeline and user data for the newly onboarded domain. The research record locates this support at Device and identity validation steps.

Only the traced statements above are asserted as source facts. Apply the review to Defender for Identity workspaces, sensors, directory-service accounts, action accounts, network paths, roles, and deployment health after confirming that the source and deployed context match.

What the source does not establish

These checks validate initial visibility; they do not prove every audited event, detection, or remediation path works. No current deployment state or change approval follows from the source alone. Validate Active Directory, Windows DNS, time, certificates, domain-controller resources, network capture, cloud connectivity, and security operations, and treat examples or options as conditional inputs rather than defaults.

Applicability questions

• For source statement 1 at Sensor status validation, which observable configuration, record, or test can confirm applicability here?
• For source statement 2 at Device and identity validation steps, which observable configuration, record, or test can confirm applicability here?
• Which deployed instance of Defender for Identity workspaces, sensors, directory-service accounts, action accounts, network paths, roles, and deployment health will be compared with the source, and why that instance?
• How will the review distinguish a source mismatch from a failure in Active Directory, Windows DNS, time, certificates, domain-controller resources, network capture, cloud connectivity, and security operations?
• Who approves the conclusion, exception, test window, and rollback threshold?

DSE recommendation:

DSE recommends using the cited source as the evidence anchor for this decision. Begin by recording scope and current state before deciding whether a change is warranted. Record the source location, examined part of Defender for Identity workspaces, sensors, directory-service accounts, action accounts, network paths, roles, and deployment health, observed and expected states, owner, and reason for deviation.

For an approved change, define prerequisites, a limited test path, success and stop conditions, monitoring, and rollback. Check Active Directory, Windows DNS, time, certificates, domain-controller resources, network capture, cloud connectivity, and security operations in design order. Protect credentials, keys, recovery material, personal data, and sensitive topology in evidence.

Verification and evidence

A reviewer should be able to retrace the decision from Sensor status validation; Device and identity validation steps through sensor inventory, service and action-account permissions, health alerts, connectivity tests, portal state, and controlled detection tests. Record what was collected, where, when, by whom, and which system or role it represents.

Close the review only when the evidence, exception handling, resulting action, and after-state are linked. Schedule a new review after material technical, organizational, incident, or source changes; today’s observation is not a continuing guarantee.

Official references

• Validate sensor deployment on domain controllers — Microsoft