Protecting The “Panama Papers” Whistleblower

In 2015 Bastian Obermayer, an investigative journalist for the Süddeutsche Zeitung, received a message every journalist dreams of: the biggest leak in journalism history. But dealing with the massive 2.7 Terabyte data-dump, 11.5 million documents - while making sure his source's identity could not be uncovered, turned out to be a huge challenge.