Australia’s online safety regulator is investigating Meta Platforms Inc., Snap Inc., TikTok and YouTube for potentially failing to comply with the country’s social media ban for under-16s, in the first formal assessment of Big Tech’s response to the world-first crackdown.

In its first compliance report on Tuesday, eSafety said it has “significant concerns” about the platforms’ adherence to the law, and major gaps remain in their policing measures. There aren’t enough safeguards to stop under-16s creating new accounts, while some platforms are allowing underage kids to repeatedly attempt the same age-check methods until they’re successful, the regulator said. The law took effect Dec. 10, 2025.