What it reads
Microsoft's own public sign-in discovery pages.
Check 42 of 54 · Identity and brand
Microsoft 365, explained.
Whether you run on Microsoft 365, as context for the rest.
Engine 1.57.0, read 25 October 2026
Free checkContextReliability: Definitive
Who could pass themselves off as you?
What the check does, and where it stops.
Why it matters
It tells us which hardening advice applies to you.
What it shows
It is context: background only. It is never graded, so nothing it finds lowers your score.
Where its limits are
Background only.
ReliabilityDefinitive: reads a published value
Check 42 is one of 4 in Identity and brand. See it in its row on the scanner page, beside the rest of Identity and brand.
See how your domain does.
The free check includes this one and takes about 30 seconds. No account. Nothing to install.