The German newspaper Suddeutsche Zeitung uncovered eleven million documents from a major tax haven, which reveal how rich people around the world hide their finances.

The documents came from Mossack Fonseca, a law firm in Panama that has a reputation for being one of the most secretive companies in the world, the BBC reports.

The find shows that Mossack Fonseca is connected with 72 present or former heads of state, including a number of dictators. Despite this, the firm claims to have never been charged with a crime in the past 40 years.