A California jury has delivered a significant verdict in a case examining whether social media platforms can be held responsible for harm linked to their design.
Jurors concluded that platforms operated by Meta and Google contributed to the mental health harm of a young woman who began using social media as a child. The claimant, now aged 20, was awarded $6m (£4.5m) in damages.
The ruling is already attracting attention and is likely to be closely watched in similar platform liability litigation.
Both companies have confirmed that they intend to appeal.
A case centred on platform design
The claim was brought by a young woman known as Kaley. She alleged that prolonged exposure to social media platforms contributed to addiction, depression and suicidal thoughts.
According to the claimant’s legal team, the platforms’ recommendation systems and continuous content feeds were designed to maximise user engagement, including among younger users.
The claimant began using YouTube at the age of six and Instagram at nine.
Two other companies originally named in the claim — Snapchat and TikTok — settled before the case reached trial. The litigation therefore proceeded against Meta and Google.
How the jury apportioned responsibility
After five weeks of testimony, the jury concluded that the platforms played a role in the harm experienced by the claimant.
They awarded:
- $3m in compensatory damages
- $3m in punitive damages
Responsibility was divided between the companies, with Meta expected to bear 70% of the damages and Google the remaining 30%.
The proceedings included testimony from company executives and expert witnesses. Meta’s chief executive Mark Zuckerberg also appeared in court to defend the company’s youth safety policies.
Tech companies challenge the verdict
Both companies have strongly criticised the jury’s findings.
Meta argued that teenage mental health is influenced by many factors and cannot be attributed to a single digital platform. The company also highlighted recent changes it says were introduced to strengthen protections for teenage users.
Google, meanwhile, argued that the verdict misunderstands the nature of YouTube, describing it as a video-sharing service rather than a social networking platform.
Given the companies’ intention to appeal, the litigation may continue for several years.
A developing litigation trend
The case forms part of a broader wave of lawsuits in the United States examining the role of social media platforms in youth mental health. Multiple claims are currently progressing through US courts, including actions brought by parents, school districts and state authorities.
Many of these cases focus on allegations that engagement-driven design features — including recommendation algorithms and infinite content feeds — may contribute to harmful patterns of use among younger audiences.
The California verdict may influence how similar claims are argued, particularly where questions arise about foreseeability, platform design and the duty of care owed to younger users.
Possible implications beyond the United States
Developments of this kind are being closely watched internationally, with courts and regulators in other jurisdictions increasingly examining the responsibilities of technology companies when designing digital platforms that reach younger audiences.
In the UK, political and regulatory pressure around online child safety has intensified in recent years. MPs recently rejected a proposal that would have banned under-16s from accessing social media platforms. However, regulators are continuing to scrutinise platform design and safety features.
Ofcom and the Information Commissioner’s Office have both urged the major technology companies — including Meta, TikTok, Snapchat and YouTube — to strengthen safeguards for children. Areas of focus include age verification, algorithmic risk and the potential impact of new AI-driven features.
The UK government has also launched a consultation on children’s use of social media, which will explore whether further regulatory measures may be required.
Monitoring developments in platform liability
We are not currently aware of any directly equivalent UK collective action concerning alleged social media addiction. However, as we all know, legal developments overseas often influence litigation strategies elsewhere.
For firms monitoring emerging technology claims, the California verdict may provide an early indication of how UK courts could approach questions about the relationship between platform design and user harm in the future.
At Join the Claim, we are already raising awareness of these issues among UK consumers, helping people understand how platform design and digital services may affect them and what their rights could be as this area of law evolves.
