This page aggregates measured, corroborated evidence: donors' iPhones recorded apps contacting this domain, every claim below was reported by separate accepted donations and published under a human verdict (later rows for an approved app inherit its verdict). A contact is a measurement, not an accusation — it does not show what data was sent.
mobileappcommunicator.auth.microsoft.com
classified as first-party · 2
What our research panel found AI-drafted · human-reviewed
We ask several independent AI models the same question and publish their answers separately — cross-vendor agreement is evidence against fabrication, and disagreement is worth seeing. 3 of 3 models answered, overall confidence high. A human reviewed this domain's claims before anything here published.
Anthropic Claude — first-party
mobileappcommunicator.auth.microsoft.com is a subdomain of microsoft.com, the same publisher as Microsoft Authenticator (com.microsoft.azureauthenticator), and its name suggests first-party authentication/push communication infrastructure rather than a third-party SDK endpoint. Nothing in the provided data indicates a data flow beyond the app's own service, so I cannot conclude the label fails to cover it.
OpenAI — first-party
The domain is a microsoft.com subdomain and is most likely operated by Microsoft for Microsoft Authenticator services. The domain contact alone does not establish a data flow beyond the app's declared privacy-label categories.
Google Gemini — first-party
The contacted domain is owned by Microsoft, the developer of Microsoft Authenticator, making this a first-party service endpoint used for authentication functionality.
Apps measured contacting this domain
| App | Label gap | Donations | Contacts | Seen |
|---|---|---|---|---|
| Microsoft Authenticator | — | 4 | 24 | 2026-07-28 → 2026-07-29 |
The corpus grows one report at a time: donate your App Privacy Report — anonymous by design.
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