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Missing the Mark

Adoption of Watermarking for Generative AI Systems in Practice and Implications Under the New EU AI Act

Bibliographic Data

ID21837529
AuthorsBram Rijsbosch (0009-0000-0803-211X, Maastricht University, corresponding author), Gijs Van Dijck (0000-0003-4102-4415, Maastricht University), Konrad Kollnig (0000-0002-7412-8731, Maastricht University)
Year2026
Volume18
Issue2
Publication date2026-06-01
Open AccessYes
TypeARTICLE
VenuePolicy & Internet (JOURNAL)
Journal identifiersISSN: 1944-2866 • E-ISSN: 1944-2866
PublisherWiley (PUBLISHER • GB)
DOI10.1002/poi3.70041
OpenAlexW7154972796
LanguageEN
References cited16

AI‐generated images have become so good in recent years that individuals often cannot distinguish them from ‘real’ images. This development, combined with the rapid spread of AI‐generated content online, creates a series of societal risks. Watermarking, a technique that involves embedding information within the content to indicate their AI‐generated nature, has emerged as a primary mechanism to address these risks. Indeed, watermarking and AI labelling measures are now becoming a legal requirement in many jurisdictions, including under the 2024 EU AI Act. Yet, despite the widespread use of AI image generation systems, the practical implications and current status of implementation of these measures remain largely unexamined. The present paper therefore provides both an empirical and a legal analysis of these measures. In our legal analysis, we identify four categories of generative AI deployment scenarios and outline how the legal obligations could apply in each. In our empirical analysis, we find that only a minority number of AI image generators currently implement adequate watermarking (38%) and deep fake labelling (18%) practices. In response, we suggest a range of avenues of how the implementation of these legally mandated techniques can be improved, and publicly share our tooling for detecting watermarks

Digital watermarking · Embedding · Empirical research · Generative grammar · Labelling · Software deployment · Adversarial Robustness in Machine Learning · Ethics and Social Impacts of AI · Explainable Artificial Intelligence (XAI

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