The European Union is ramping up pressure on Meta to make big changes to Facebook and Instagram after the European Commission preliminarily found that features like autoplay, infinite scroll, and highly personalized content recommendations were addictive.

On Thursday, the EC said its investigation indicated that “Meta did not adequately assess the risks of its addictive design on the physical and mental wellbeing of users, including minors and vulnerable adults.”

“These features fuel the user’s urge to keep scrolling and shift the brain into ‘autopilot mode,’ contributing to unhealthy habits and compulsive use,” the commission said.

Over the next few months, Meta will have an opportunity to dispute the claims, and it has already taken a defensive stance. Meta’s spokesperson, Ben Walters, told Reuters that Meta disagrees with the commission’s preliminary findings, which supposedly “don’t accurately take into account the significant steps we’ve taken to protect teens.”

“Since this investigation began, we rolled out Teen Accounts that automatically protect teens and put parents in control—allowing them to block access to Instagram at night ‌and cap ⁠daily screen time at just 15 minutes,” Walters said.

However, the EC emphasized that Meta’s current mitigation efforts, including time management tools activated by default for teens, “failed to effectively tackle the risks stemming from its addictive design.” Additionally, parental controls were deemed “only effective if parents and guardians possess adequate technical expertise” and dedicated “effort and time to understand them effectively.”

“This undermines the efficiency of such measures in addressing the inherent risks posed by Instagram and Facebook’s addictive design,” the EC said, particularly for minors.

At this stage, the EC recommended that Meta consider “disabling key addictive features such as ‘autoplay’ and ‘infinite scroll’ by default, implementing effective ‘screen time breaks,’ and adapting its recommender system to make it less engagement-oriented.”