Case tracker
AI & Big Tech Harm Case Tracker
A sourced, human-reviewed record of lawsuits and regulatory actions over harm caused by AI systems, social media platforms, and Big Tech — chatbot failures, addictive design, child safety, biometric privacy, algorithmic denials, and more. Each case links to attorneys who handle that kind of matter.
13 cases listed · last reviewed . Every entry links to its sources — verify current status before relying on any case.
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13 cases · Ongoing
- Social media addictionOngoingFirst bellwether trial Jan 2026
Social Media Cases (JCCP 5255)
Meta/Instagram, Snap/Snapchat, TikTok/ByteDance, Google/YouTube · United States (California)
California's state-court coordinated proceeding (the state analog to the federal MDL) consolidates roughly 800 individual and school-district cases alleging that social media platforms were designed to addict young users and harm their mental health. In late 2025 the court denied the platforms' motions for summary judgment, clearing the way for jury trials on product-design liability. The first state bellwether trial, KGM v. Meta & YouTube, began jury selection on January 27, 2026.
- Social media addictionOngoingFiled Oct 8, 2024
State AG Coalition v. TikTok (2024 addictive-design suits)
TikTok/ByteDance · United States (13 states and the District of Columbia)
A coalition of 13 states and the District of Columbia, led by California and New York, filed separate lawsuits alleging TikTok deceived the public about the app's safety and deliberately designed addictive features (autoplay, push notifications, beauty filters) that harm children's mental health, in violation of state consumer-protection laws. The suits cite internal communications including a staffer describing a 'slot machine' effect on young users.
- Child safetyOngoingFiled Aug 2, 2024
United States v. TikTok Inc. and ByteDance Ltd. (COPPA)
TikTok/ByteDance · United States (federal)
The DOJ and FTC sued TikTok and ByteDance alleging that since 2019 they knowingly permitted children to create regular accounts, collected and retained their personal data, and failed to honor parental deletion requests, in violation of COPPA and a prior 2019 FTC consent order. The complaint seeks civil penalties of up to $51,744 per violation per day and permanent injunctive relief.
- Copyright & training dataOngoingFiled Dec 27, 2023
The New York Times Company v. Microsoft Corp. & OpenAI
OpenAI ChatGPT / Microsoft Copilot · United States (New York)
The New York Times sued OpenAI and Microsoft alleging unauthorized copying of millions of its articles to train GPT models, seeking damages and destruction of infringing datasets. In a 2025 ruling the court allowed core copyright claims to proceed past a motion to dismiss; the case is consolidated with related publisher suits and remains pending.
- AI benefit & claim denialsOngoingFiled Nov 14, 2023
Estate of Lokken v. UnitedHealth Group, Inc.
UnitedHealth / NaviHealth "nH Predict" AI algorithm · United States (Minnesota)
The estates of deceased Medicare Advantage enrollees allege UnitedHealth used the nH Predict AI tool to deny medically necessary post-acute care, overriding clinicians’ judgment, while allegedly knowing the tool had a roughly 90% reversal rate on appeal. A federal magistrate ordered broad discovery into UnitedHealth’s AI claims processes in 2025 and the case is proceeding.
- Teen mental healthOngoingFiled Oct 24, 2023
State AG Coalition v. Meta Platforms (youth mental health)
Meta/Instagram · United States (42 states/territories; 33 in the federal suit)
A bipartisan coalition of 42 state attorneys general sued Meta in federal and state courts, with 33 states joining a federal complaint in the Northern District of California. The suit alleges Meta knowingly designed addictive features on Instagram and Facebook that harm young users and collected data from children under 13 without parental consent in violation of state consumer-protection laws and COPPA.
- Copyright & training dataOngoingFiled Sep 20, 2023
Authors Guild v. OpenAI, Inc.
OpenAI GPT models / ChatGPT · United States (New York)
The Authors Guild and 17 authors including George R.R. Martin, John Grisham, and Jodi Picoult filed a class action alleging their books were copied from pirate repositories to train GPT-3.5 and GPT-4 without permission. The suit claims this infringes copyright and harms authors’ livelihoods; the case is proceeding in the Southern District of New York.
- AI benefit & claim denialsOngoingFiled Jul 24, 2023; class advanced Mar 2025
Kisting-Leung v. Cigna Corporation
Cigna "PxDx" automated claims-review algorithm · United States (California)
Following a ProPublica investigation, plaintiffs filed a class action alleging Cigna's PxDx algorithm enabled mass denial of claims, with reviewing doctors allegedly spending an average of about 1.2 seconds per case, contrary to California law requiring thorough, fair review. In March 2025 the court allowed the class action over the AI-based algorithm to proceed.
- Teen mental healthOngoingJoined Jun 7, 2023
Spokane Public Schools social media youth-harm suit
Meta/Instagram, Snap/Snapchat, TikTok/ByteDance, Google/YouTube · United States (Washington)
The Spokane Public Schools board voted in June 2023 to join the wave of school-district lawsuits (following Seattle) against the operators of TikTok, YouTube, Snapchat, Instagram, and Facebook. The complaint alleges the companies intentionally market to youth and affirmatively recommend harmful content, contributing to rising depression, anxiety, eating disorders, and bullying among students.
- Employment & hiring AIOngoingFiled Feb 21, 2023; collective certified May 2025
Mobley v. Workday, Inc.
Workday AI-based applicant recommendation/screening system · United States (California)
Derek Mobley and other plaintiffs allege Workday's AI applicant-screening tools discriminate based on age, race, and disability under a disparate-impact theory. In May 2025 the court granted preliminary collective certification under the ADEA for applicants 40 and older, allowing a nationwide collective action to proceed; the case remains pending.
- Copyright & training dataOngoingFiled Jan 13, 2023; trial set Sep 2026
Andersen v. Stability AI Ltd.
Stability AI, Midjourney, DeviantArt, Runway (image generators) · United States (California)
Artists Sarah Andersen, Kelly McKernan, and Karla Ortiz brought a class action alleging AI image generators were trained on their copyrighted works without consent. In an August 2024 ruling the court dismissed some claims but allowed direct copyright infringement, inducement, and trademark claims to proceed; trial has been set for September 2026.
- Teen mental healthOngoingFiled Jan 6, 2023
Seattle Public Schools v. Meta Platforms, et al.
Meta/Instagram, Snap/Snapchat, TikTok/ByteDance, Google/YouTube · United States (Washington)
Seattle Public Schools became the first U.S. school district to sue the operators of TikTok, Instagram, Facebook, Snapchat, and YouTube, alleging the companies' platforms contributed to a youth mental-health crisis by recommending harmful content such as pro-eating-disorder material. The complaint frames the claim around the companies' own design conduct to avoid Section 230 immunity, and was later folded into the broader social-media litigation.
- Social media addictionOngoingMDL formed Oct 6, 2022
In re Social Media Adolescent Addiction/Personal Injury Products Liability Litigation (MDL No. 3047)
Meta/Instagram, Snap/Snapchat, TikTok/ByteDance, Google/YouTube · United States (federal)
Consolidated federal multidistrict litigation gathering thousands of personal-injury claims, hundreds of school-district suits, and state attorney general actions alleging that social media platforms were designed to maximize adolescent screen time and foster addiction, causing emotional and physical harms including death. By early 2026 it included more than 10,000 individual cases and nearly 800 school-district lawsuits. Snap and TikTok reached settlements in January 2026 ahead of the first bellwether trial.
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This tracker is an informational summary of public legal matters compiled from the sources cited on each case page. It is not legal advice and is not a complete record of any case. Verify current status with primary sources before relying on it.