wikipedia made a legal challenge against part of the new uk online safety act.
https://wikimediafoundation.org/news/2025/08/11/wikimedia-foundation-challenges-uk-online-safety-act-regulations/>[Wikipedia's] legal challenge focuses solely on the new Categorisation Regulations that risk imposing Category 1 duties (the OSA’s most stringent obligations) on Wikipedia.>If enforced on Wikipedia, Category 1 demands would undermine the privacy and safety of Wikipedia’s volunteer contributors, expose the encyclopedia to manipulation and vandalism, and divert essential resources from protecting people and improving Wikipedia, one of the world’s most trusted and widely used digital public goods.the
the high court of justice dismissed the challenge.
https://www.judiciary.uk/wp-content/uploads/2025/08/Wikimedia-Foundation-and-another-v-Secretary-of-State-for-Science-Innovation-and-Technology.pdfhttps://metro.co.uk/2025/08/12/wikipedia-loses-online-safety-act-challenge-mean-internet-23882890/quote from official high court judgment.
>I stress that this does not give Ofcom and the Secretary of State a green light to implement a regime that would significantly impede Wikipedia’s operations. If they were to do so, that would have to be justified as proportionate if it were not to amount to a breach of the right to freedom of expression under article 10 of the Convention (and, potentially, a breach also of articles 8 and 11). It is, however, premature to rule on that now. Neither party has sought a ruling as to whether Wikipedia is a Category 1 service. Both parties say that decision must, for the moment, be left to Ofcom. If Ofcom decides that Wikipedia is not a Category 1 service, then no further issue will arise.basically he said wikipedia could potentially raise a complaint if ofcom officially classified wikipedia as a category 1 service. pic from ofcom.
https://www.ofcom.org.uk/online-safety/illegal-and-harmful-content/additional-duties-for-categorised-online-services 