- Organisation
- TIM Brasil
- Predecessor
- Fragmented security environment with different tools and manual event correlation
- Destination
- Microsoft Defender XDR with Defender Experts for XDR
- Workload
- Endpoint protection, threat detection, incident correlation and managed security operations across nearly 12,000 endpoints
- Stage
- Implemented XDR migration
- Retirement status
- The fragmented operating structure was replaced for the stated endpoint and XDR scope; individual predecessor products are not named.
- Confidence
- High
- Next trigger
- A named predecessor inventory or material expansion of the Defender operating scope.
Programme context
TIM Brasil placed Defender XDR and Defender Experts for XDR into production across nearly 12,000 endpoints in under 20 days.
Why this matters: The record identifies a named organisation, an explicit predecessor and destination platform, and a bounded workload and lifecycle stage.
Migration timeline
| Date or stage | Milestone | What changed | Evidence status |
|---|---|---|---|
| Fragmented source state | Migration milestone | Different tools required manual event correlation. | Source-stated source state |
| Under 20 days | Migration milestone | Nearly 12,000 endpoints were protected in under 20 days. | Source-stated duration |
| 5 Jun 2026 | Migration milestone | Microsoft published the production-state account. | Dated primary evidence |
Workload migration matrix
| Workload | Predecessor | Destination | Status by 23 Jul 2026 |
|---|---|---|---|
| Endpoint protection, threat detection, incident correlation and managed security operations across nearly 12,000 endpoints | Fragmented security environment with different tools and manual event correlation | Microsoft Defender XDR with Defender Experts for XDR | Implemented XDR migration |
Implementation and architecture
- Defender XDR correlates incidents across the protected estate.
- Defender Experts for XDR supports the managed operating model.
- Zero-impact and operational improvements remain attributed claims.
Known unknowns and contradictions
- The predecessor product names.
- The exact calendar cutover date.
- Any residual tools outside the nearly 12,000-endpoint scope.
No missing fact is inferred to broaden the source-supported migration claim.
PlatformTrace analysis
The source supports the named XDR and security-operations transition. It does not name the displaced products or prove replacement of every security control.
Performance, cost, uptime and operational outcomes remain attributed source claims unless independently stated otherwise.
Evidence ledger
- Microsoft customer story, 5 June 2026
Named TIM Brasil security leadership identifies the fragmented source environment, Defender XDR target, 12,000-endpoint scale and under-20-day deployment.
Corrections and updates
23 July 2026 — Initial Verified dossier published from the complete five-lane overnight intake and corrected central adjudication. Later milestones will be appended rather than silently replacing this state.