Lawsuits involving TikTok

TikTok has been involved in a number of lawsuits since its founding, with a number of them relating to TikTok's data collection techniques.

Tencent lawsuits
Tencent's WeChat platform has been accused of blocking Douyin's videos. In April 2018, Douyin sued Tencent and accused it of spreading false and damaging information on its WeChat platform, demanding CN¥1 million in compensation and an apology. In June 2018, Tencent filed a lawsuit against Toutiao and Douyin in a Beijing court, alleging they had repeatedly defamed Tencent with negative news and damaged its reputation, seeking a nominal sum of CN¥1 in compensation and a public apology. In response, Toutiao filed a complaint the following day against Tencent for allegedly unfair competition and asking for CN¥90 million in economic losses.

Data transfer class action lawsuit
In November 2019, a class action lawsuit was filed in California that alleged that TikTok transferred personally identifiable information of U.S. persons to servers located in China owned by Tencent and Alibaba. The lawsuit also accused ByteDance, TikTok's parent company, of taking user content without their permission. The plaintiff of the lawsuit, college student Misty Hong, downloaded the app but said she never created an account. She realized a few months later that TikTok had created an account for her using her information (such as biometrics) and made a summary of her information. The lawsuit also alleged that information was sent to Chinese tech giant Baidu. In July 2020, twenty lawsuits against TikTok were merged into a single class action lawsuit in the United States District Court for the Northern District of Illinois. In February 2021, TikTok agreed to pay $92 million to settle the class action lawsuit.

Inappropriate content for minors
Indiana Attorney General Todd Rokita filed lawsuits against TikTok, alleging that the platform exposed inappropriate content to minors. The complaint also alleges that TikTok "intentionally falsely reports the frequency of sexual content, nudity, and mature/suggestive themes" on their platform which made the app's "12-plus" age ratings on the Apple and Google app stores deceptive.

Voice actor lawsuit
In May 2021, Canadian voice actor Bev Standing filed a lawsuit against TikTok over the use of her voice in the text-to-speech feature without her permission. The lawsuit was filed in the Southern District of New York. TikTok declined to comment. Standing believes that TikTok used recordings she made for the Chinese government-run Institute of Acoustics. The voice used in the feature was subsequently changed.

Collecting children's data
In June 2021, the Netherlands-based Market Information Research Foundation (SOMI) filed a €1.4 billion lawsuit on behalf of Dutch parents against TikTok, alleging that the app gathers data on children without adequate permission.

Blackout Challenge
Multiple lawsuits have been filed against TikTok, accusing the platform of hosting content that led to the death of at least seven children. The lawsuits claim that children died after attempting the "Blackout challenge", a TikTok trend that involves strangling or asphyxiating someone or themselves until they black out (passing out). TikTok stated that search queries for the challenge do not show any results, linking instead to protective resources, while the parents of two of the deceased argued that the content showed up on their children's TikTok feeds, without them searching for it.

Discrimination
In September 2023, two former ByteDance employees filed a formal complaint with the U.S. Equal Employment Opportunity Commission (EEOC) asking the EEOC to investigate TikTok's practice of retaliation against workers who complain about discrimination.

In February 2024, a former senior executive at TikTok filed a lawsuit in the United States District Court for the Southern District of New York against the company, alleging discrimination based on age and gender. Prior to this lawsuit, she had filed a complaint with the EEOC against the company in May 2023, alleging discrimination and retaliation.

Mental health of minors
In May 2024, the Nebraska Attorney General filed a lawsuit against TikTok for allegedly harming minors' mental health through an algorithm designed to be cultivate compulsive behavior.