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Changes in the 120 days since 13 Jun 2026, when Office Sentry started keeping this tenant's audit log that are worth confirming with the client: domain sign-in (federation) changes, new app secrets and certificates, admin roles granted, and Conditional Access policies deleted or switched off. Failed attempts are left out.
| Client | When (UTC) | Change | By | Target | Detail |
|---|---|---|---|---|---|
| Contoso Legal LLP high | 9 Oct 2026, 08:31 | Set domain authentication | mallory.hart@contoso.example | contoso.example | |
Why it matters: Changes how users of a domain sign in; a rogue federation lets someone sign in as anyone | |||||
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