UK Online Safety Act: Ofcom announces first enforcement actions against social media platforms

The UK communications regulator Ofcom announced its first enforcement actions under the Online Safety Act on 5 November 2026, issuing formal notices to three major social media platforms for failures to adequately assess and mitigate risks of child sexual exploitation and abuse on their services. The regulator identified systemic deficiencies in age assurance mechanisms, grooming prevention and response to user reports of child abuse material, with potential fines reaching up to ten percent of global annual revenue if platforms fail to achieve compliance within prescribed timelines.

Pattern-based detection deployed at the point of contact offers regulators and platforms a mechanism that addresses the harms Ofcom has prioritised without requiring platforms to dismantle encryption or build surveillance infrastructure. Guardii's anti-grooming and anti-sextortion modules intercept escalating manipulation and coercion as conversations unfold, surfacing high-risk exchanges to moderation teams or authorities while preserving user privacy, a capability that directly responds to the risk-assessment and mitigation obligations now being enforced under the Act.