Europol was breached likely the EPE web portal using stolen credentials

Europol, the European Union's law enforcement agency, confirmed that its Europol Platform for Experts (EPE) portal was breached and is now investigating the incident after a threat actor claimed they stole For Official Use Only (FOUO) documents containing classified data. 

EPE is an online platform law enforcement experts use to "share knowledge, best practices and non-personal data on crime."