TikTok has been fined £12.7m by the privacy watchdog for illegally using over a million young children’s personal data.
The Information Commissioner’s Office (ICO) said that the viral video app had allowed 1.4m under-13s to sign up in 2020 alone, despite claiming to ban them from the service.
The ICO said the Chinese-owned video sharing app had failed to check people’s ages and remove underage users from the service.
UK data laws require apps such as TikTok to seek parental consent when children under 13 sign up.
John Edwards, the Information Commissioner, said: “An estimated one million under 13s were inappropriately granted access to the platform, with TikTok collecting and using their personal data.
“That means that their data may have been used to track them and profile them, potentially delivering harmful, inappropriate content at their very next scroll.
“TikTok should have known better. TikTok should have done better. Our £12.7m fine reflects the serious impact their failures may have had. They did not do enough to check who was using their platform or take sufficient action to remove the underage children that were using their platform.”
The watchdog said concerns had been raised inside TikTok about under-13s using the service. In the regulator’s view, the app failed to respond adequately.
The ICO said last year that it could fine the app up to £27m but said on Tuesday it had reduced the figure after representations from TikTok.
TikTok has also been fined in the US for misusing children’s data.
The app, which is owned by China’s ByteDance, is under growing scrutiny around the world over its ownership and treatment of young users.
The UK, US and EU are among those to have banned the app from government-issued devices. Australia became the latest country to issue a ban on Tuesday.
The app faces a potential ban in the US if its Chinese investors do not sell their stake.
A TikTok spokesman said the company disagreed with the ICO's decision but was pleased the fine had been reduced.
The spokesman said: "We invest heavily to help keep under 13s off the platform and our 40,000 strong safety team works around the clock to help keep the platform safe for our community.
"We will continue to review the decision and are considering next steps."