Meta, the parent company of Facebook and Instagram, has lodged an appeal in the High Court against a record fine of €405m imposed on Instagram by the Irish Data Protection Commission (DPC).
Earlier this month, the DPC fined the social media platform for breaches relating to the processing of children's data.
It is the largest fine ever imposed by the DPC and followed an investigation into user settings on the Instagram platform that led to the publication of the phone numbers and email addresses of children.
The inquiry also focused on a user registration system for the Instagram service whereby the accounts of child users were set to public by default, thereby making public the social media content of the accounts.
When the fine was issued, Meta said it disagreed with the decision and that the settings at the centre of the investigation have now been updated.
The company also said at the time that it would appeal the ruling and papers have now been lodged with the High Court.
"We disagree with a number of aspects of the decision, including how the fine was calculated and we have now filed our appeal," a Meta spokesperson said in a statement to RTÉ News.