Max Schrems, who already has a case involving the social network pending at the European Court of Justice, is claiming damages of 500 euros ($663) per user from US-listed Facebook. The $195 billion company has 1.32 billion active users.
Schrems said the Vienna Regional Court had ordered Facebook Ireland to respond within four weeks to his claims, which include that the social network aided the US National Security Agency in mining the personal data of Facebook users.
Facebook Ireland, which runs the company’s international activities, was not immediately available to comment.
Schrems closed the list of plaintiffs earlier this month after 25,000 people joined the campaign, because his legal team needed to verify and administer each one.
Since then, another 35,000 have registered on www.fbclaim.com to join the class action should it expand later, Schrems said on Thursday.