A few things to consider when evaluating the morality of this leak: 1. I can assure you that the majority of people purchasing services from Mossack Fonseca ar

A few things to consider when evaluating the morality of this leak: 1. I can assure you that the majority of people purchasing services from Mossack Fonseca are not "completely innocent". 2. There is firm precedent for the legality of whistleblowing when you believe there to be crimes occurring. 3. "Who owns a business" is not generally considered to be a highly protected class of information, and that's mostly what the data in the leak is about. It's generally about board structure and ownership of various shell companies. 4. Only in Panama (and a few other countries) is business ownership information considered to be "confidential" information. But to answer your direct question - what legal right do these journalists have? I believe they have the same legal right all citizens do: the right to know if our leaders are committing crimes secretly.