The plaintiffs allege that they suffered losses due to fraudulent investment advertisements that utilized fake endorsements from celebrities, as reported by local media on Tuesday.
They contend that both Meta and its Japanese subsidiary did not take adequate measures to prevent these purported scams.
According to Kyodo News, the lawsuits have been filed in various district courts, including those in Osaka, Kobe, Yokohama, Chiba, and Saitama.
The advertisements in question reportedly featured endorsements from well-known personalities, prompting the plaintiffs to transfer funds to specified accounts after being exposed to the misleading content.
The plaintiffs assert that Meta had an obligation to review advertising content and prevent posts that could potentially harm users.
Earlier in 2024, a similar lawsuit was initiated against Meta in Kobe, involving four plaintiffs, and the company has been attempting to have it dismissed, as reported by Kyodo.