As the July 25, 2025, deadline looms, the UK’s Online Safety Act (OSA) enters into a critical enforcement phase. One of the OSA’s most contentious and consequential elements is the requirement of “highly effective” age assurance for adult content providers. There are over 40 new rules in the “protection of children”
You must be this tall to click: The Online Safety Act and age-appropriate access

Failure to comply can lead to fines of up to £18m ($24.3m) or 10% of global turnover.
