# Lightning AI: Critical incident: Service is down to address a security incident

**Summary:** _summary pending_
- Kind: Major incident · Label: critical (vendor)
- Changed: 2026-10-16 20:34 UTC · Detected: 2026-10-19 17:33 UTC
- [Source: https://stspg.io/j45j2k0cwnnz](https://stspg.io/j45j2k0cwnnz)
- [Company: Lightning AI](https://rewindex.com/company/lightning-ai.md)
- Versions: before (none: first archived) → after incident\_version:714/h20stxqvwg8r@f8e2315371a5
- Change 1 of 1 for this incident

Incident page (full timeline): [Service is down to address a security incident](https://rewindex.com/company/lightning-ai/incidents/h20stxqvwg8r.md)
## What changed

**1. Added: Title**

```diff
+ Service is down to address a security incident
```

**2. Added: Impact**

```diff
+ critical
```

**3. Added: Status**

```diff
+ identified
```

**4. Added: Start time**

```diff
+ 2026-10-16 20:34 UTC
```

**5. Added: Update** (investigating) · 2026-10-16 03:08 UTC

```diff
+ We are currently doing an emergency maintenance on the service
```

**6. Added: Update** (investigating) · 2026-10-16 20:34 UTC

```diff
+ More details here: https://lightning.ai/security-incident
```

**7. Added: Update** (identified) · 2026-10-16 20:34 UTC

```diff
+ More details here: https://lightning.ai/security-incident
```

**8. Added: Update** (identified) · 2026-10-19 12:49 UTC

```diff
+ More details here: https://lightning.ai/security-incident
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-10-16 20:34 UTC | Critical incident: Service is down to address a security incident (this change) | critical |

All Lightning AI changes: [timeline](https://rewindex.com/company/lightning-ai/changes.md)
_Diff excerpts are shown on normalized text: dates, counters and tokens appear as ‹date›, ‹count›, ‹tok›; noise-only edits are hidden. Rewindex shows the changed passages, not a copy of the page._


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Canonical: https://rewindex.com/change/i373018c7ee6ab7 · Markdown: https://rewindex.com/change/i373018c7ee6ab7.md · JSON: https://rewindex.com/api/v1/changes/i373018c7ee6ab7 · Generated 2026-10-20T00:48:54.395Z