Dutch authorities arrested a hacker for obtaining and trying to sell the personal information of nearly every Austrian citizen in May 2020, according to Reuters. It includes almost nine million data sets, roughly lining up with Austria’s population.

The defendant, arrested in November in an Amsterdam apartment, was reportedly already known to international police. The 25-year-old defendant also offered “similar data sets” from Italy, the Netherlands and Colombia. Dutch police waited until now to announce the arrest to avoid hindering ongoing investigations.