Ireland’s data privacy regulator has agreed to levy a record fine of 405 million euros ($402 million) against social network Instagram following an investigation into its handling of children’s data, a spokesperson for the watchdog said.

Instagram plans to appeal against the fine, a spokesperson for parent Meta Platforms Inc. said in an emailed statement.

The investigation, which started in 2020, focused on child users between the ages of 13 and 17 who were allowed to operate business accounts, which facilitated the publication of the user’s phone number and/or email address, Reuters reported from Dublin.

“We adopted our final decision last Friday and it does contain a fine of 405 million euro,” said the spokesperson for Ireland’s Data Protection Commissioner (DPC), the lead regulator of Instagram’s parent company Meta Platforms Inc.

Full details of the decision will be published next week, he said.