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Changes in the 120 days since 14 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) | By | Target | Detail |
|---|---|---|---|---|
| Northwind Traders high | 9 Oct 2026, 18:36 | mallory.price@ | northwindtraders.example | |
Why it matters: Changes how users of a domain sign in; a rogue federation lets someone sign in as anyone | ||||
| Northwind Traders medium | 11 Oct 2026, 18:36 | Contoso Automation | Mail Sync Pro | Credential added |
Why it matters: New secret or certificate: whoever holds it can sign in as the app | ||||
| Northwind Traders medium | 10 Oct 2026, 18:36 | admin@ | Payroll Sync | Added certificate |
Why it matters: New secret or certificate: whoever holds it can sign in as the app | ||||
| Northwind Traders medium | 10 Oct 2026, 06:36 | admin@ | robert.hughes@ | Global Administrator |
Why it matters: Admin role granted | ||||
| Northwind Traders medium | 9 Oct 2026, 06:36 | admin@ | ann.patel@ | Exchange Administrator |
Why it matters: Admin role granted | ||||
| Northwind Traders medium | 7 Oct 2026, 06:36 | admin@ | Require MFA for all users | On → Off |
Why it matters: Conditional Access policy no longer enforced | ||||
| Northwind Traders medium | 5 Oct 2026, 18:36 | admin@ | Block risky countries | |
Why it matters: Conditional Access policy deleted | ||||
| Northwind Traders medium | 30 Sep 2026, 06:36 | admin@ | Payroll Sync | Added certificate |
Why it matters: New secret or certificate: whoever holds it can sign in as the app | ||||
| Northwind Traders medium | 1 Sep 2026, 06:36 | admin@ | Require MFA for all users | On → Off |
Why it matters: Conditional Access policy no longer enforced | ||||
| Northwind Traders medium | 9 Aug 2026, 06:36 | admin@ | robert.hughes@ | Global Administrator |
Why it matters: Admin role granted | ||||
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