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ARTICLE · 15 APRIL 2026

New UK CSEA Reporting Rule Takes Effect For User-to-User Services

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The UK has introduced mandatory reporting requirements for child sexual exploitation and abuse content detected on online platforms, while the EU has unveiled a privacy-preserving age verification app...

United KingdomPrivacy
Zach Judge-Raza
Zach Judge-Raza
Lucia Martinez
Lucia Martinez
Alexei Klestoff
Alexei Klestoff

The UK has taken another step in moving online safety compliance beyond content moderation into formal law enforcement reporting. Since 7 April 2026, regulated user-to-user (‘U2U’) services covered by the UK’s Online Safety Act (‘OSA’) must implement systems and processes to report, so far as possible, detected child sexual exploitation and abuse (‘CSEA’) content to the UK’s National Crime Agency (‘NCA’), with commencement for search services expected later. The Online Safety (CSEA Content Reporting by Regulated User-to-User Service Providers) Regulations 2026 set out the practical reporting steps for how in-scope U2U services must report detected and unreported CSEA content to the NCA, in line with their duties under the OSA.

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