According to a Dutch television program Zembla, data on several investigations into the terrorism groups conducted by the Europol were accidentally leaked online. The leak was caused by a former employee who took dossiers home. The man transferred the precious information on a hard drive, but unfortunately, he was not aware that the storage was connected to the Internet and it was accessible to anyone without any restriction. A security investigation regarding this case is on-going, in coordination with the respective authorities at national level.”]
Source: https://securityaffairs.co/wordpress/53927/terrorism/terrorism-europol-data-leak.html