Yokohama Court Dismisses Fraud Victims' Suit Against Meta Over Fake Celebrity Ads

A Japanese court has delivered the first ruling in a closely watched set of cases over fake investment ads on social media, and it went Meta's way. On Thursday, October 15, the Yokohama District Court dismissed a damages lawsuit against Meta Platforms and its Japanese unit brought by people who said they were cheated through ads that used celebrities' names and images without permission, Jiji Press reported.

The decision matters well beyond one courtroom. Similar suits are pending in other district courts across Japan, and the question at the heart of them, how far a platform must go to police the ads it runs, is being argued in many countries.

What the plaintiffs claimed

The Yokohama case was brought by six investment fraud victims and one company, according to the Jiji report published by The Japan Times. Together they sought about ¥43 million in damages.

Their argument was that Meta knew fake ads were rampant on its platforms, including Facebook, and could easily have removed them, but left them online. As a result, they said, people were drawn into investment scams that borrowed the faces and names of well known figures.

What the court decided

The court found it difficult to conclude that Meta could easily have recognized the ads as fraudulent at the time they were published. According to the report, the court also did not recognize that Meta had received information indicating the ads were fake when the plaintiffs viewed them, between April and November 2023, or that Japanese entrepreneurs Yusaku Maezawa and Takafumi Horie had demanded the deletion of ads using their names.

Presiding Judge Katsumi Takagi summed up the core finding: "Meta was not necessarily obliged to investigate and verify the truthfulness of the ads and prevent them from appearing on Facebook and other platforms."

The plaintiffs plan to appeal. At a news conference after the ruling, their lawyer, Takako Shirota, called the decision unjust and said it "condones the proliferation of fake ads and could lead to further harm from investment fraud through social media." The report did not include a response from Meta.

The legal question underneath

Cases like this usually turn on two linked issues: what a platform knew, and when. A company that is told about a specific fraudulent ad and leaves it up is in a very different position from one that could only have caught the ad through its own checks before publication.

The Yokohama ruling treated the second situation as the relevant one for these plaintiffs. By finding that Meta could not easily have identified the ads as fake when they ran, and was not necessarily required to verify each ad's truthfulness in advance, the court set a high bar for holding a platform liable for scam ads it did not create.

That reasoning is not the last word. It is a first instance decision, it will be appealed to a higher court, and five other district courts are handling similar claims. Those judges are not bound to reach the same result, and the facts in each case, including when warnings reached the company, may differ.

Why businesses are watching

For advertisers, platforms and brands, the cases go to the heart of how online advertising works. If courts impose a duty to vet ads before they run, platforms could face higher compliance costs and slower ad approval. If they do not, the burden of spotting fraud stays largely with users, regulators and the people whose identities are copied.

Public figures have a direct stake as well. The mention of Maezawa and Horie in the ruling shows how often well known names are borrowed to sell schemes they have nothing to do with, and how hard it can be for them to stop it.

What readers can take from it

Whatever the appeals decide, the safest assumption remains simple: a celebrity endorsement in a social media ad is not proof of anything. Before sending money to any investment offer, check whether the firm is registered with your national financial regulator, never move a conversation to a private messaging app at a stranger's request, and report suspicious ads to the platform and to police.

Court Magazine will follow the appeal and the rulings still to come from the other district courts, which together will shape how much responsibility Japan expects platforms to carry for the ads they publish.