http://fortune.com/2016/04/03/document-leak-panama/
A team of 370 journalists in more than 75 countries researched the 11.5 million documents.
In one of the largest and most far-reaching document leaks in modern history, more than 370 journalists from 76 countries spent over a year plowing through 11.5 million records on offshore accounts and dummy corporations created by a secretive Panamanian law firm.
What the group—which was co-ordinated by the International Consortium of Investigative Journalists and over 100 media entities around the globe—found was a trove of files that detail the holdings of 140 politicians and public officials, including the prime ministers of Iceland and Pakistan and the president of Ukraine.
The documents, which cover more than 40 years worth of offshore companies created by the Mossack Fonseca firm, also exposed the holdings of a dozen other global leaders. According to the ICIJ they show how officials tied to Russian President Vladimir Putin moved as much as $2 billion in Russian currency through a variety of banks and dummy corporations.