Microsoft Defender for Endpoint (MDE) must enable Device discovery.

Malicious code protection mechanisms include, but are not limited to, antivirus and malware detection software. To minimize potential negative impact to the organization that can be caused by malicious code, it is imperative that malicious code is identified and eradicated.

This setting allows onboarded devices to discover unmanaged devices in the network and assess vulnerabilities and risks.

Access the MDE portal as a user with at least an MDE Administrator or equivalent role:

1. In the navigation pane, select Settings >> Endpoints >> Advanced features (under General). 2. Verify the slide bar for "Device discovery" is set to "On".

If the slide bar for "Device discovery" is not set to "On", this is a finding.

Access the MDE portal as a user with at least an MDE Administrator or equivalent role:

1. In the navigation pane, select Settings >> Endpoints >> Advanced features (under General). 2. Set the slide bar for "Device discovery" to "On".