Hoare was the first named journalist to allege that former tabloid editor Andy Coulson was aware of phone hacking by his staff.
In an interview with the BBC's Panorama he revealed: "If you've got to get a story, you've got to get it by whatever means." The interviewier then asked him if he was subject to that kind of pressure. "Yes of course I was. That is the culture of News International," he replied.