An enormous store of 11.5 million documents — mostly emails — leaked from Panamanian law firm Mossack Fonseca. The report by the International Consortium of Investigative Journalists (ICIJ) published after a yearlong study of the documents by a collaboration of over 100 news organizations. According to the ICIJ report, the firm’s data integrity and retention practices were willfully noncompliant — the firm regularly backdated documents and also destroyed them to evade a US government investigation. For more, see the ICJ report and The Guardian’s guide to the report.”]

