---
title: "CommonSpirit Health security incident"
description: "What the retained public evidence establishes about the CommonSpirit Health incident, its attack path, impact, and response."
incident_type: "Cybersecurity incident"
status: "active"
last_modified: "2026-09-19"
canonical_url: "https://www.ally.security/incidents/commonspirit-health-security-incident-2022"
markdown_url: "https://www.ally.security/incidents/commonspirit-health-security-incident-2022.md"
stix_url: "https://www.ally.security/incidents/commonspirit-health-security-incident-2022/stix.json"
---

# CommonSpirit Health security incident

Ransomware. EHR outage across multiple states for weeks; delayed chemo appointments.

Last modified Sep 19, 2026 · 1 source

## Summary

- **Environment:** Hospital system (140+ hospitals)
- **Operational impact:** EHR outage across multiple states for weeks; delayed chemo appointments
- **Financial impact:** No financial figure is established by the reviewed source evidence

## What happened

In 2022, CommonSpirit Health experienced an incident in its hospital system (140+ hospitals) environment. The retained source describes the attack path as follows: Ransomware. [1](#source-1)

The documented consequence was: EHR outage across multiple states for weeks; delayed chemo appointments. [1](#source-1)

## Impact

- Documented impact: EHR outage across multiple states for weeks; delayed chemo appointments. [1](#source-1)
- No financial loss, ransom amount, recovery cost, or regulatory penalty is established by the reviewed source evidence.

## Timeline

### November 9, 2022 — Documented public update

The [CommonSpirit Update](https://www.commonspirit.org/news-articles/commonspirit-update) records the incident facts used in this briefing. [1](#source-1)

### September 19, 2026 — Briefing updated

This briefing was last reviewed and updated on September 19, 2026.

## Threat Group & Attack Vector

The retained source describes the attack path as follows: Ransomware. The canonical record does not add intrusion steps beyond those supported by the source. [1](#source-1)

### Actors

- No threat actor group has been identified in the reviewed public evidence.

### TTPs

- [T1486 — Data Encrypted for Impact](https://attack.mitre.org/techniques/T1486/) — mapped from the cited behavior. [1](#source-1)

## Response

The retained source reports coordination with law enforcement as part of the incident response. [1](#source-1)
The retained source describes a forensic or specialist investigation of the incident. [1](#source-1)

This account is bounded to [CommonSpirit Update](https://www.commonspirit.org/news-articles/commonspirit-update). Details absent from that evidence are left unresolved rather than inferred. [1](#source-1)

## Assets

[Download the case-scoped STIX 2.1 bundle](<https://www.ally.security/incidents/commonspirit-health-security-incident-2022/stix.json>)

## Sources

Primary source records used to research this incident.

<a id="source-1"></a>

### CommonSpirit Update

official · CommonSpirit Health

<https://www.commonspirit.org/news-articles/commonspirit-update>

<details>
<summary>Evidence ledger</summary>

Review the supporting structured claims.

1. **Resulted In · 100% confidence · current**  
   CommonSpirit Health security incident: The reviewed source documents the commonspirit health security incident involving CommonSpirit Health.
2. **Used Attack Technique · 90% confidence · current**  
   CommonSpirit Health security incident: https://attack.mitre.org/techniques/T1486/
3. **Affected Organization · 100% confidence · current**  
   CommonSpirit Health security incident: CommonSpirit Health
4. **Resulted In · 90% confidence · current**  
   CommonSpirit Health security incident: The retained source reports coordination with law enforcement as part of the incident response.
5. **Resulted In · 90% confidence · current**  
   CommonSpirit Health security incident: The retained source describes a forensic or specialist investigation of the incident.
6. **Resulted In · 83% confidence · current**  
   CommonSpirit Health security incident: EHR outage across multiple states for weeks; delayed chemo appointments.
7. **Occurred At · 100% confidence · current**  
   Documented public update: 2022-11-09
8. **Resulted In · 95% confidence · current**  
   CommonSpirit Health security incident: Ransomware.

</details>