On March 25, 2026, a Los Angeles jury returned a verdict in K.G.M. v. Meta Platforms, Inc., finding the parent company of Facebook and Instagram harmed a young user with features designed to be addictive and calling for it to pay $4.2 million in compensatory and punitive damages. It may prove to be one of the most consequential product liability trials of the year. The case is one of thousands of consolidated claims alleging that social media platforms were deliberately designed in ways that harmed the mental health of children and adolescents. Recent verdicts, early settlements and multiple trials set for this year underscore that similar litigation is accelerating.
Although social media platforms are the current focus, they are unlikely to be the only defendants. Vendors, consultants, agencies and technology providers whose work feeds into these systems also face growing exposure. The insurance and contractual risk transfer issues raised by the K.G.M. litigation are significant, so any company that may be a target should take steps to address them before a complaint is filed.
The Litigation Landscape
At the core of the litigation is what plaintiffs call “addictive design.” Such claims include allegations that platforms deliberately engineered features to maximize time-on-platform among young users and did so with knowledge of the resulting mental health consequences. Features that could be considered “addictive” include infinite scroll, autoplay, push notifications, engagement streaks and algorithmic content. Critically, plaintiffs are focused on product design and platform features rather than basing their claims on user-generated content. That distinction matters because Section 230 of the Communications Decency Act has historically shielded platforms from liability for what users post but offers far less protection against claims rooted in how the product itself was built. Plaintiffs are taking a strategy comparable to the wildly successful litigation against Big Tobacco in the 1990s. Courts have largely allowed these design-based theories to proceed, and the K.G.M. proceedings were the first opportunity to test them before juries. The claimants have included both private plaintiffs as well as government claimants.
Individual plaintiffs and their families have concentrated their claims on personal injury theories, alleging that platform design features caused or materially contributed to specific, documented mental health injuries including depression, anxiety, body dysmorphia, eating disorders, self-harm and suicidal ideation. School districts, which constitute a significant category of plaintiffs in both the state and federal proceedings, are pursuing a related theory that platform addiction has caused measurable harm to student academic performance, school discipline and district resources. Both sets of claimants have attempted to use internal platform documents to establish that defendants knew of the risks and proceeded anyway.
State attorneys general have taken a somewhat different approach to the litigation. Rather than leading with personal injury, these government actions have emphasized consumer protection and public nuisance theories, framing platform design as a deceptive or unfair trade practice directed at a vulnerable population. More than 40 state attorneys general have filed suits against Meta, and similar actions targeting other platforms are proceeding in multiple states. Just one day before the jury returned its verdict in California, a New Mexico jury found Meta liable for $375 million in damages for child safety and exploitation in a state consumer protection case.
The litigation is now moving at pace across multiple fronts and additional trials are scheduled for this year. If plaintiffs build a viable product-design theory against the platforms, the litigation history of analogous mass tort cases points to what may come next: the expansion of named defendants to include the vendors, consultants, agencies and technology providers whose work touched the conduct at issue. Each additional defendant represents a separate insurance tower and an additional source of settlement pressure.
The categories of companies realistically at risk of being drawn into this litigation include companies supporting ad tech and analytics; data and targeting; product, UX and growth; trust and safety; AI and recommendation systems; and marketing functions.
For companies that are at risk of being targeted, understanding the insurance issues is critical. That means knowing which policies may respond, how carriers are likely to approach these claims, and what steps counsel can take now to preserve coverage and maximize the available protection.
Determining Relevant Insurance Policies
The main question for companies facing claims arising from addictive design litigation is which policies are relevant and the answer depends on how the claims are framed. Plaintiffs have shown considerable flexibility in their pleading theories, and that flexibility creates coverage opportunities across multiple policy lines. For example:
- Tech errors and omissions (E&O): Sometimes called professional liability, tech E&O coverage protects companies against claims alleging that their technology services, products or advice were negligently designed, delivered or implemented. For ecosystem companies, this is the most obvious starting point. Claims alleging that a vendor’s services were negligently designed, optimized or implemented fall squarely within the core grant of a tech E&O policy.
- Commercial general liability (CGL): In cases where plaintiffs frame mental health injuries as bodily injury or where government claimants press public nuisance theories, there is an argument for coverage under a commercial general liability policy’s general liability grant.
- Media liability: Media liability coverage protects against claims arising from content creation, publication, broadcasting and related communications activities, including allegations of defamation, invasion of privacy and intellectual property infringement. While it will be a fact-specific inquiry depending on the claim and the nature of the organization’s work, this coverage is worth examining closely, particularly for agencies and content-related vendors.
- Directors and officers (D&O): D&O coverage also warrants close attention, particularly for private companies. Private company D&O forms protect directors, officers and, in many forms, the company itself against claims alleging broadly defined “wrongful acts,” a term that typically encompasses any actual or alleged error, omission, misleading statement, neglect or breach of duty. That broad grant can reach a wide range of claims, including regulatory investigations, government civil investigative demands, shareholder or investor claims, and claims by customers or counterparties alleging that company leadership made misrepresentations. While the coverage is generally narrower for publicly traded companies, public companies should also evaluate coverage for any follow-on shareholder suits, regulatory investigations or governance-related claims.
Beyond insurance policies, companies should not lose sight of contractual risk transfer arrangements. Indemnity provisions in master services agreements and statements of work can shift defense and indemnity obligations between platforms and their vendors.
Commercial contracts also may contain additional insured obligations, insurance procurement requirements and priority of coverage provisions that impact which insurance policies may respond and how costs are ultimately allocated across the available coverage. For any company facing these claims, commercial contracts are an additional source of protection that deserve careful attention.
Threshold Questions for Occurrence-Based Policies
For occurrence-based policies, particularly CGL policies, two of the most consequential and contested coverage questions are when the covered injury is deemed to have taken place, and how liability is spread across multiple triggered policy years. These issues are particularly consequential for long-tail harm litigation.
On trigger, courts have developed four principal approaches:
- Exposure trigger, under which coverage is triggered when the claimant was first exposed to the harmful condition
- Manifestation trigger, under which coverage is triggered when injury first becomes apparent
- Injury-in-fact trigger, under which coverage is triggered when actual injury occurs regardless of when it manifests
- Continuous trigger, under which all policy years from initial exposure through manifestation are implicated
In cases alleging progressive mental health harm from years of platform use, plaintiffs will almost certainly press continuous trigger arguments, potentially reaching every policy year during which a claimant used the relevant platform or service. Assuming multiple policy years are implicated, there will be questions regarding how defense costs and indemnity are divided among the triggered years and their respective carriers. Under a pro rata approach, liability is spread proportionally across all triggered years, often based on time on risk. Under an all-sums approach, a single carrier may be required to respond for the full loss, with rights of contribution against other triggered carriers.
In the event of an addictive design lawsuit, companies may find themselves locating and analyzing insurance policies sold a decade or more before the suit was filed.
Potential Coverage Challenges
Any company that has navigated a complex insurance claim will not be surprised to learn that carriers in this litigation are unlikely to simply accept coverage obligations and write checks. Major CGL insurers are denying coverage to some of the big companies in these bellwether lawsuits, which has already resulted in coverage litigation. Therefore, policyholders should expect a fight. However, these coverage challenges are surmountable and policyholder who recognize them early will be better positioned to respond.
Carriers will frequently argue that the underlying conduct was intentional or knowing, invoking expected or intended injury exclusions, knowing violation exclusions, or fraud-type carve-outs. This argument is particularly likely where internal documents reflect awareness of youth safety risks or prior regulatory engagement. Meta faced precisely this issue in its coverage case, and a Delaware court recently held that Meta was not entitled to defense coverage after adopting a notably narrow view of the allegations and concluding that the complaints alleged exclusively deliberate conduct. That decision appears to turn on the court’s characterization of the specific allegations at issue, rather than announcing a broader principle. It is important to emphasize that these early suits targeting Meta are likely to look different than potential future litigation involving a wider range of defendants and parties. More generally, the duty to defend is triggered where there is any potential for coverage, and courts often require a defense if the complaint can reasonably be read to include even potentially covered conduct.
Carriers may also dispute whether the underlying claims allege “bodily injury.” The framing may differ depending on which line of coverage is at issue. Specifically, in CGL policies, insurers may contest whether mental health harm constitutes bodily injury. However, courts in several jurisdictions have extended bodily injury coverage to psychological harm. On the other hand, bodily injury exclusions may exist in D&O and E&O policies and carriers may assert that the underlying claims allege physical rather than purely economic or reputational injury.
Prior knowledge, prior notice and prior acts arguments present another potential trap for companies that have proactively engaged with youth safety issues. Carriers may attempt to characterize participation in industry working groups, prior responses to regulatory inquiries and even good-faith safety assessments as evidence that the insured had advance knowledge of the risk. Policyholders should assess their internal record and develop a strategy for responding to these arguments before they appear in a reservation of rights or denial letter.
Where government claimants press consumer protection and deceptive practices theories, carriers will look to consumer protection or unfair trade practice exclusions that appear in some E&O and CGL forms. Policyholders should push back on this argument. Properly framed, these exclusions address competition-related conduct, price fixing, antitrust violations and similar commercial misconduct, not personal injury claims brought under consumer protection statutes.
Of course, this list is not exhaustive—insurer correspondence will frequently raise additional arguments depending on the policy language and the allegations of the claim. Policyholders should not treat the reservation of rights or denial letter as the final word and should engage coverage counsel to evaluate each argument and develop a coordinated response strategy.
Strategies for Contesting Denial and Protecting Coverage
Understanding how carriers will approach these claims is only half the battle. The other half is knowing how to respond.
Insurance coverage law is state law, and the same dispute over the same policy language can be resolved in conflicting ways depending on which state’s law applies. That variability means that governing law will be a critical threshold question in any coverage dispute, and it is likely to generate its own jurisdictional battles as carriers and policyholders maneuver toward forums with law favoring their respective positions. Identifying the applicable law early and understanding how it affects each of the issues below is an essential first step in any coverage strategy.
The insurer’s duty to defend is among the broadest obligations in insurance law, and policyholders should take full advantage of it. In most jurisdictions, the duty to defend is triggered whenever the underlying allegations are potentially within the scope of coverage. As a result, a single potentially covered claim is often sufficient to trigger the duty across the entire defense. Whenever carriers attempt to reframe the allegations or characterize a claim as the core element of a lawsuit, counsel should push back on those characterizations firmly and identify the allegations that are potentially covered. In reporting claims, policyholders should not seek to summarize the allegations.
Regarding reporting, notice should go to every potentially implicated carrier. This includes not only the primary carrier, but all excess carriers whose policies may be reached. Late notice to excess carriers is a common issue in complex coverage litigation, and it is often avoidable.
In some instances, insurers will agree to provide a defense under a reservation of rights rather than deny coverage outright. Policyholders still need to ensure they are receiving the defense to which they are entitled. That includes evaluating and, where appropriate, asserting the right to independent counsel in light of conflicts of interest, and ensuring that the defense is funded at reasonable market rates without being constrained by overly restrictive or unreasonable billing guidelines.
Finally, as settlement opportunities arise, those discussions require particular care. Most policies contain consent-to-settle provisions. While insureds should seek to obtain carriers’ consent before settling, carriers cannot unreasonably withhold consent. An insurer’s failure to respond reasonably to a settlement opportunity may create coverage consequences, but these issues require careful consideration and insurer positions should be documented.
A Practical Checklist for Preserving Coverage
The insurance and contractual issues discussed above are significantly easier to manage when the groundwork has been laid in advance. To help lay that foundation, companies should:
- Build a one-page insurance map across all potentially relevant lines, including E&O, CGL, D&O, media liability and excess. Identify notice requirements, policy years, changes in carriers, and shifts between occurrence and claims-made forms.
- Pull the contracts governing platform-adjacent work and flag indemnity obligations, additional insured requirements, insurance procurement obligations and priority of coverage provisions.
- When a claim, subpoena or government inquiry arrives, provide notice broadly and immediately to all potentially implicated carriers, both primary and excess, based on all potential theories.
- Tender contractual indemnity and additional insured rights at the same time as insurance notice.
- Avoid framing that tracks exclusion language or characterizes the company’s conduct in ways that a carrier could use against it.
- Engage coverage counsel to evaluate every argument the carrier raises and respond in writing. If a carrier responds with a reservation of rights, do not treat it as the final word.
- Immediately evaluate whether the reservation of rights creates a conflict that warrants a demand for independent counsel. Where it exists, this right should be asserted early.
- Keep carriers informed of settlement discussions and document their responses carefully.
The recent verdicts and the ongoing bellwether proceedings signal that social media harm or addictive design litigation has arrived and is not going away. Insurance and contractual risk transfer will not determine who wins or loses these cases, but they do provide a meaningful set of tools for managing the financial exposure that comes with it and are a critical part of any serious response to this complex litigation landscape.
The authors would like to thank Jennifer Fasulo for her contributions to the article.