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Alleged Deepfake Misuse Against German TV Personality Collien Fernandes: AI Incident Implications

December 2, 2025

German television personality and actor, Collien Fernandes, has accused her former husband, Christian Ulmen, of a prolonged online impersonation campaign involving deepfakes. The alleged activities include the distribution of sexually explicit synthetic images and videos, falsely presented as hers. Although Ulmen's lawyer denied the claims and threatened legal action against reporting, these incidents highlight potential risks associated with deepfakes in AI applications.

Collien Fernandes' case underscores the urgency for responsible AI governance and trustworthy AI practices. Join us at HISPI Project Cerebellum TAIM – Trusted AI Model – to learn more about harm prevention strategies and safeguards that can contribute to safe and secure AI development and usage.
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Alleged deployer
christian-ulmen
Alleged developer
unknown-deepfake-technology-developers
Alleged harmed parties
epistemic-integrity, collien-fernandes

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Source

Data from the AI Incident Database (AIID). Cite this incident: https://incidentdatabase.ai/cite/1432

Data source

Incident data is from the AI Incident Database (AIID).

When citing the database as a whole, please use:

McGregor, S. (2021) Preventing Repeated Real World AI Failures by Cataloging Incidents: The AI Incident Database. In Proceedings of the Thirty-Third Annual Conference on Innovative Applications of Artificial Intelligence (IAAI-21). Virtual Conference.

Pre-print on arXiv · Database snapshots & citation guide

We use weekly snapshots of the AIID for stable reference. For the official suggested citation of a specific incident, use the “Cite this incident” link on each incident page.