#PanamaPapers is the hashtag trending on Twitter.
Sport celebrities, mafia members and world leaders hiding wealth in offshore shell companies managed by Panamanian law firm Mossack Fonseca have been exposed by this massive leak.
Edit 4/4/16
Mossack Fonesca have released a statement about this leak: http://www.scribd.com/doc/306839585/Declaration-de-Mossak-Fonseca-en-anglais