Risk · R-144 · Generative Content & Information Integrity
Unmarked synthetic content
AI-generated or manipulated content is released without machine-readable marking, or without disclosure to the audience, where the law requires it.
- Severity
- Medium
- Audience
- Heads-of · Practitioner
- Frameworks
- Article 50 · Information Integrity
- Responsible AI domain
- Lifecycle stage
- Reviewed
- 2026-11-11
What it is
When content can no longer be told apart from the real thing by looking, the audience depends on being told. The EU AI Act places duties on both sides: providers of generative systems must ensure that outputs are marked in a machine-readable way as artificially generated, and those who deploy systems to produce deepfakes, or text published to inform the public, must disclose that the content is generated, with limited exceptions. The risk is that an organisation generates and publishes content with neither marking nor disclosure. Telling a person that they are talking to a machine is a separate duty, covered in undisclosed AI interaction.
How it happens
- The generation tool applies no marking, or the marking is stripped in editing.
- Marketing uses generated images and treats them like stock photography.
- Nobody is responsible for deciding when disclosure is needed.
- Content is edited by a person and assumed to be exempt.
Why it matters
It is a breach where the duty applies. Beyond that, an audience that discovers undisclosed synthetic content tends to distrust the rest of what the organisation publishes.
Warning signs
- No policy states when generated content must be labelled.
- Tools in use have never been checked for marking.
- Published images or video cannot be traced to their origin.
- Export and editing steps remove metadata.
Mitigating controls
Primary controls
- AI transparency and disclosure labelling Directive
- Provides the visible disclosure. People are told, clearly and at the point of contact, when they are dealing with an AI system and when content they are shown was generated by one.
- Synthetic content marking and provenance Preventive
- Applies machine-readable marking and provenance data to generated media. Generated and manipulated media carries machine-readable marking and provenance data, a visible disclosure where one is required, and the marking is tested for robustness.
Supporting controls
- Review of AI-generated communications Preventive
- Checks marking is present before publication. Customer communications produced by AI are checked against content standards before use, in full or by sampling according to risk, and required wording is enforced.
Framework and clause references
| Framework | Clause | Title |
|---|---|---|
| EU AI Act | Article 50 | Transparency and disclosure obligations The marking and disclosure duties. |
| NIST Generative AI Profile (NIST AI 600-1) | Information Integrity | Information Integrity Provenance of content. |
Sources
- EU AI Act: Regulation (EU) 2024/1689 European Union (EUR-Lex) · official text
- NIST Generative AI Profile NIST · framework
Related terms
How to cite
Axiom Verity (2026). Unmarked synthetic content. Reference Library, R-144. https://axiom-verity.com/risks/unmarked-synthetic-content. Reviewed 2026-11-11.
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