In preliminary findings, the EU says TikTok breached the DSA by failing to prevent its recommendation algorithm from trapping users in harmful "rabbit holes"

The EU's investigation into TikTok's algorithm could lead to stricter regulations on how all social media platforms recommend content, potentially impacting user engagement metrics and revenue models.

The European Commission has issued preliminary findings accusing TikTok of breaching the EU's Digital Services Act (DSA). Regulators allege that TikTok's recommendation algorithm traps users in "rabbit holes" of harmful content, specifically concerning sadness, self-harm, and body image. This marks the first time EU regulators have directly challenged a major social media platform's engagement-based recommendation system. The investigation found that TikTok did not adequately analyze or safeguard against the risks associated with its algorithm's tendency to recommend increasingly similar content based on user interaction. While TikTok identified some issues in its own assessments, the Commission found the company's mitigation efforts, such as "dispersion" techniques and "not interested" feedback, to be ineffective. If confirmed, TikTok could face fines up to 6% of its global annual revenue. This action follows previous EU findings against TikTok regarding addictive design and protections for minors.

This investigation signals a significant regulatory shift toward scrutinizing the core engagement-driven business models of social media platforms, moving beyond content moderation to algorithmic design itself. By focusing on how recommendation systems can inadvertently create harmful feedback loops, even with seemingly legal content, the EU is setting a precedent for future enforcement actions globally. This could compel platforms to redesign their algorithms to prioritize user well-being over maximizing engagement, potentially altering user experience and advertising strategies.

The European Commission's approach, which focuses on implicit engagement signals rather than explicit user choices, could influence upcoming legislation like the proposed KIDS Act. This suggests a broader regulatory trend aiming to protect vulnerable users by mandating more transparent and user-controlled content recommendation systems. Platforms operating within or targeting the EU market will likely need to invest heavily in algorithmic accountability and user control features to comply with evolving digital services regulations.