British regulator Ofcom has opened a probe into Telegram, the messaging app with 1bn users, after reports that child sexual abuse material circulated on the platform. The investigation follows a separate inquiry into teen chat sites Teen Chat and Chat Avenue, which provide open rooms and private messaging and profile creation services for young users.

Under the Online Safety Act, user‑to‑user services must assess and mitigate risks of child sexual abuse material. Ofcom’s assessment, triggered by evidence from Canada’s Centre for Child Protection, will examine whether Telegram complies with its duties to prevent such content and protect vulnerable users and their families against online predators in the UK market today.

Telegram’s chief executive, Pavel Durov, was questioned in France last year over alleged moderation failures. He denies the claims, but the ongoing probe could pressure the company to tighten content filters and transparency reports, potentially reshaping its privacy‑centric brand image and affecting its global user base and market share in Europe and Asia this year.

With six file‑sharing providers already pulling out of the UK over safety concerns, regulators face mounting pressure to enforce stricter safeguards across digital platforms. For investors, the outcome will signal the regulatory cost of operating in a space where privacy promises clash with child protection obligations for global businesses in the digital era today and and.