2026-08-11T09:54:27Z https://drops.dagstuhl.de/oai

oai:drops-oai.dagstuhl.de:23673 2026-02-09T12:25:38Z ddc:004 open_access

Online Privacy: Transparency, Advertising, and Dark Patterns (Dagstuhl Seminar 25042) Acar, Günes Bielova, Nataliia Shafiq, Zubair Borgesius, Frederik Zuiderveen advertising dark patterns data protection online tracking privacy world wide web This report documents the program and the outcomes of Dagstuhl Seminar 25042 "Online Privacy: Transparency, Advertising, and Dark Patterns". The seminar brought 26 participants in computer science, law and policy together, coming from research institutions, as well as industry, law firms and regulators across Europe, US, and Middle East. The 2.5-day seminar had a well-filled program, with introductions of all participants and several group activities; two presentations from industry representing Web browser providers, such as Apple and Mozilla; two presentations from the law research community presenting open problems in Web tracking, dark patterns, ad tech and new EU regulations, such as the EU Digital Services Act; and two panels - one presenting the open challenges in compliance by EU and US lawyers and regulators, and one discussing the future of advertising by industrial representatives from Web browser vendors. The program also included a rump session for short talks, allowing all participants to expose their recent research, open questions, and challenges to these research communities, industry, and regulators. Schloss Dagstuhl – Leibniz-Zentrum für Informatik Günes Acar and Nataliia Bielova and Zubair Shafiq and Frederik Zuiderveen Borgesius 2025 Is Part Of Dagstuhl Reports, Volume 15, Issue 1 (2025) Article Text doc-type:ResearchArticle publishedVersion application/pdf doi:10.4230/DagRep.15.1.122 urn:nbn:de:0030-drops-236735 https://drops.dagstuhl.de/entities/document/10.4230/DagRep.15.1.122 eng https://creativecommons.org/licenses/by/4.0/legalcode