UK’s online safety rules take effect
The Online Safety Act has issued a final warning to social media platforms, giving them until March 2025 to address illegal content or face hefty fines.

Social media platforms operating in the UK have been given until March 2025 to identify and mitigate illegal content on their services or risk fines of up to 10% of their global revenue. The warning comes as the Online Safety Act (OSA) begins to take effect, with Ofcom, the regulator, releasing final guidelines on tackling harmful material, including child sexual abuse, self-harm promotion, and extreme violence.
Dame Melanie Dawes, Ofcom’s chief, described this as the industry’s “last chance” to reform. “If platforms fail to act, we will take enforcement measures,” she warned, adding that public pressure for stricter action could grow. Companies must conduct risk assessments by March, focusing on how such material appears and devising ways to block its spread.
While hailed as a step forward, critics argue the law leaves gaps in child safety measures. The Molly Rose Foundation and NSPCC have expressed concerns about the lack of targeted action on harmful content in private messaging and self-harm imagery. Despite these criticisms, the UK government views the Act as a reset of societal expectations for tech firms, aiming to ensure a safer online environment.