This report Technical Analysis of recent Cyber security attacks which hit Turkey specifically includes the Turkish National Police (EGM) breach as a case study, detailing how 17.8GB of sensitive data was exfiltrated to external servers.
The hacktivist group Anonymous claimed responsibility, stating the leak was a protest against government corruption and alleged support for extremist groups.
: The data included sensitive internal police documents collected over a two-year period.
In 2016, two separate massive data leaks targeted Turkish national systems, exposing the sensitive information of nearly 50 million citizens and the internal records of the (EGM) . 1. The Turkish National Police (EGM) Leak (February 2016)