Wikimedia Foundation Loses UK Court Battle Over Strict Online Safety Act Rules
August 11, 2025
The Wikimedia Foundation (WMF) has lost its High Court challenge against the UK Government regarding the Online Safety Act's (OSA) verification rules, a decision that could significantly impact how online platforms manage user identification.
The OSA imposes strict requirements for online platforms, raising concerns about potential restrictions on free speech and operational burdens.
Platforms classified as Category 1 under the OSA face stringent requirements, including user verification and rapid removal of harmful content.
The court indicated that Ofcom must interpret the rules flexibly to avoid significantly disrupting Wikipedia's operations, acknowledging its substantial value.
Despite the ruling, the Wikimedia Foundation believes it underscores the responsibility of Ofcom and the UK government to ensure Wikipedia's operations are not impeded.
The Foundation argues that user verification could expose contributors to risks such as data breaches and legal repercussions, particularly in authoritarian regimes.
Rupert Paines, representing WMF, emphasized that the regulations are primarily designed for large profit-driven tech companies, not a non-profit entity like Wikipedia, and that imposing verification would violate human rights.
The High Court upheld the government's decision, allowing for judicial reviews on specific grounds related to the OSA's impact on user engagement and content dissemination.
Justice Johnson suggested that lawmakers could amend the act to lessen its impact on platforms like Wikipedia, highlighting the need for a balanced approach.
In a blog post prior to the ruling, the Foundation stressed the importance of protecting its volunteers and the integrity of free knowledge against the burdens imposed by the OSA.
Designed to mitigate harmful content, the OSA classifies websites into categories based on user numbers and information-sharing systems.
With approximately 26 million monthly users in the UK, Wikipedia's potential classification as a Category 1 service could drastically affect a much larger user base than the government's estimated 7 million.
Summary based on 14 sources
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Sources

Forbes • Aug 11, 2025
Wikipedia May Have To Impose Identity Verification On Readers
BBC News • Aug 11, 2025
Wikipedia loses challenge against Online Safety Act verification rules
Ars Technica • Aug 11, 2025
Wikipedia loses UK Safety Act challenge, worries it will have to verify user IDs
The Independent • Aug 11, 2025
Wikipedia loses court challenge against Online Safety Act rules