A leak of data from Qatar National Bank was made public in April 2016. The leaked files were published on Cryptome.
The files contained the personal data of the bank's clients as well as credit card information and passwords. The leak was divided into folders for individual groups of clients; these included Qatar's Al Thani family, state security officials, and staff of Al Jazeera, the broadcaster owned by the Qatari state.
References
Qatar National Bank data leak Wikipedia(Text) CC BY-SA