EU Finds TikTok’s ‘For You’ Feed Breaches Digital Rules Over ‘Rabbit Hole’ Effect
The European Commission has preliminarily found that TikTok breaches the European Union’s Digital Services Act, saying the platform’s For You feed repeatedly steers users into “rabbit holes” of content that can harm their mental health.
The findings, announced on Friday, 6 November, target the recommendation system behind the personalised stream of videos that opens when a user launches the app. Brussels says TikTok failed to properly assess the risks of that system and put in place measures that do not work.
The Commission’s concern is not a single video, or even a single type of content. It is the loop itself: every scroll or “like” tells the algorithm to serve more of the same, and the feed can keep a person watching similar clips long after they meant to stop.
“Every time a user scrolls or ‘likes’ a video on TikTok, the algorithm serves more of the same leading users down rabbit holes they cannot easily escape,” said Henna Virkkunen, the Commission’s executive vice-president for technological sovereignty, security and democracy.
What the ‘rabbit hole’ finding means
According to the Commission, the feed can expose users “endlessly and repeatedly” to content about sadness, isolation or body image. The accumulation of such material, it said, has a “negative impact on mental health”, particularly for minors and vulnerable adults.
The problem, in the Commission’s view, is that TikTok’s own safeguards do not break the pattern. A non-personalised feed exists, but it is chosen by only 0.2% of users. A feed refresh function does not have a permanent effect. And while the app offers a “not interested” button, the Commission said it does not reduce how often harmful content is recommended.
TikTok disputes the findings. The company said the Commission’s conclusions are “fundamentally inaccurate and distort our platform’s architecture and our commitment to user safety”.
The Glasgow Times reported that TikTok will have a chance to respond to the preliminary findings before the Commission issues a final decision, which could include a fine of up to 6% of TikTok’s total worldwide annual turnover.
The third round of findings this year
Agence Europe reported that this is the third set of preliminary findings against TikTok this year, following one in February on the addictive design of its interface and one in July on the protection of minors’ accounts. The Commission opened its investigation into whether TikTok violated the Digital Services Act more than two years ago.
The Commission stressed that its preliminary findings do not prejudge the outcome of the investigation. TikTok can examine the investigation files and reply in writing, and the European Board for Digital Services will also be consulted. Ireland’s digital services coordinator, Coimisiún na Meán, supported the investigation.
In reaching its conclusions, the Commission said it examined TikTok’s risk assessments, internal data and documents, replies to requests for information, scientific research and interviews with experts in recommendation systems, psychology and psychiatry.
If the findings are confirmed, the Commission could adopt a formal non-compliance decision. That could mean a fine of up to 6% of worldwide annual turnover, and it could force changes to the design of the feed, including stronger user controls and more weight given to what users explicitly say they want to see.
A wider squeeze on the platforms
The findings land in a week when the largest platforms have faced fresh questions about how their products treat young users. TikTok is already fighting a similar battle in California, where it has joined Google and Meta in suing to block a state law that would restrict personalised feeds and autoplay for users under 16.
The European case is different in one important respect: it is not about whether the app is addictive in general, but about what its algorithm chooses to show. The Commission’s argument is that the design of the recommendation system itself — the way it interprets a tap, a pause or a “like” — is the risk.
That distinction matters beyond TikTok. The Digital Services Act is the EU’s wide-ranging rulebook for large online platforms, and the Commission has used it to press several of them over how their systems shape what users see. A confirmed finding against TikTok’s recommender would be the first focused on recommendation design itself, and other platforms will be watching how far Brussels is prepared to go.
For now, though, the case remains at the preliminary stage. No fine has been imposed, no design change has been ordered, and TikTok has the right to answer the charges. What the Commission has done is put the company on formal notice: in Brussels’ view, the feed that made TikTok the world’s most-watched short-video app is also the feature that puts its users at risk.
Frequently asked questions
What did the European Commission find?
It preliminarily found that TikTok’s For You feed breaches the Digital Services Act because its recommender system repeatedly exposes users to content that can harm their mental health, a phenomenon known as the “rabbit hole effect”.
Has TikTok been fined?
No. The findings are preliminary, not a final decision. If they are confirmed, the Commission could impose a fine of up to 6% of TikTok’s worldwide annual turnover.
What does TikTok say?
The company says the findings are “fundamentally inaccurate” and distort its platform design and its commitment to user safety. It will have a chance to respond before any final decision.
Why does this matter outside Europe?
TikTok is owned by ByteDance and operates worldwide. A confirmed finding could force changes to the feed’s design, and regulators in other countries are watching how the EU enforces its digital rules against large platforms.
