The Office of the Privacy Commissioner of Canada filed a notice of application with the Federal Court Thursday, seeking a declaration Facebook violated the Personal Information Protection and Electronic Documents Act.

The court action stems from the data mining operation by Cambridge Analytica. Creating a Facebook app, the company disguised itself as an online quiz and harvested the profiles of up to 87 million users as of an April 2018 disclosure. Using its insight into voter behaviour and preferences, Cambridge Analytica also consulted for political campaigns including the 2016 presidential campaign of Donald Trump.

The OPC and the Office of the Information and Privacy Commissioner for British Columbia conducted a joint investigation last year and “found major shortcomings in Facebook’s privacy practices,” said the OPC announcement.