Illegal and harmful content

OS-illegal

Making life safer online: our priorities for the year ahead

Published: 8 May 2026

This article shines a light on some of the key trade-offs involved and the judgements we have made.

Statement: Technology Notices

Published: 16 December 2024

Last updated: 8 May 2026

Statement on Ofcom’s Technology Notice powers. The statement includes our final advice to the DSIT Secretary of State on how to set minimum standards of accuracy against which technology must be accredited before we can require its use under a Notice, and guidance to providers about how we propose to use this power.

Ofcom's approach to implementing the Online Safety Act

Published: 26 October 2023

Last updated: 8 May 2026

Our plans for putting online safety laws into practice, and what we expect from tech firms.

Important dates for Online Safety compliance

Published: 17 October 2024

Last updated: 8 May 2026

The Online Safety Act makes companies that operate a wide range of online services legally responsible for keeping people safe online.

Investigation into the provider of Telegram and its compliance with duties to protect users from illegal content under the Online Safety Act 2023

Published: 21 April 2026

We are investigating whether the provider of Telegram, Telegram Messenger Inc. has failed, or is failing to comply with its illegal content safety duties under the Online Safety Act 2023 in respect of Child Sexual Abuse Material.

Investigation into the provider of Chat-Avenue and its compliance with duties to protect its users from illegal content

Published: 21 April 2026

Ofcom is investigating whether the provider of Chat-Avenue.com (‘Chat-Avenue’) has failed and/or is failing to comply with the duties under the Online Safety Act 2023.

Investigation into the provider of Teen-Chat and its compliance with duties to protect its users from illegal content

Published: 21 April 2026

Ofcom is investigating whether the provider of Teen-Chat.org (‘Teen-Chat’) has failed and/or is failing to comply with the duties under the Online Safety Act 2023.

Ofcom investigates Telegram and teen chat sites

Published: 21 April 2026

Ofcom has launched an investigation into Telegram under the UK’s Online Safety Act, to determine whether it is doing enough to prevent child sexual abuse material being shared.

Investigation into the provider of Yolobit and its compliance with duties to protect its users from illegal content

Published: 10 June 2025

Last updated: 21 April 2026

We are investigating whether the provider of Yolobit has failed/is failing to comply with its duties under the Online Safety Act 2023.

Enforcement programme into measures being taken by file-sharing and file-storage services to prevent users from encountering or sharing child sexual abuse material (CSAM)

Published: 17 March 2025

Last updated: 21 April 2026

Ofcom has opened a programme of work, or ‘enforcement programme’, to assess the measures being taken by providers of file-sharing and file-storage services that present particular risks of harm to UK users from image-based CSAM to ensure users do not encounter, and offenders are not able to disseminate, such content on their services.