# Danish healthcare AI data privacy controversy

> Live situation record from CLSTR: https://clstr.news/situations/danish-healthcare-ai-data-privacy-controversy
> Updated: 2026-09-29T10:15:00.000Z. Sources: 4. Developments: 2.

The Capital Region of Denmark and Region Sjælland are facing accusations of violating privacy laws during a large-scale artificial intelligence project. Internal documents indicate that 105,257 patient messages were shared without being anonymized.

The exposed data contains highly sensitive information, including details regarding cancer treatments, medication renewals, and diagnostic inquiries. Specific concerns have been raised regarding the exposure of information belonging to vulnerable populations, such as children with mental illnesses and individuals with autism.

While experts suggest these actions were unlawful, the involved regions have rejected the criticism. Affected individuals have expressed profound concern regarding the lack of data protection in medical AI trials.

## Claims

- A psychiatric clinic was involved in an AI experiment where sensitive information was shared without patient knowledge or consent. (corroborated by 2 sources)
- The AI data breach involved 105,257 confidential messages. (corroborated by 2 sources)

## Timeline

### 2026-09-29: Denmark psychiatric clinic AI experiment leaks 105,257 messages

A Danish psychiatric clinic's AI experiment led to a breach of 105,257 confidential messages, allegedly shared without patient consent, sparking fears over the privacy of vulnerable children.

2 sources. https://clstr.news/cluster/denmark-psychiatric-clinic-ai-experiment-leaks-105257-messages

### 2026-09-29: Danish regions accused of sharing sensitive patient data in AI project

Danish regions Capital Region and Region Sjælland are accused of unlawfully sharing over 100,000 unanonymized patient messages in an AI project.

4 sources. https://clstr.news/cluster/danish-regions-accused-of-sharing-sensitive-patient-data-in-ai-project

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Cite as: Danish healthcare AI data privacy controversy. CLSTR, https://clstr.news/situations/danish-healthcare-ai-data-privacy-controversy