Edward Snowden has no regrets five years on from leaking the biggest cache of top-secret documents in history. He is wanted by the US. He is in exile in Russia. But he is satisfied with the way his revelations of mass surveillance have rocked governments, intelligence agencies and major internet companies. What has happened in the five years since? The most important change, he said, was public awareness. "The government and corporate sector preyed on our ignorance. But now we know. People are aware now. People are still powerless to stop it but we are trying. The revelations made the fight more even." He said he had no regrets. His own life is uncertain, perhaps now more than ever, he said. His sanctuary in Russia depends on the whims of the Putin government, and the US and UK intelligence agencies have not forgiven him. For them, the issue is as raw as ever. One of the disclosures to have most impact was around the extent of collaboration between the intelligence agencies and internet companies. In 2013, the US companies were outsmarting the EU in negotiations over data protection. Snowden landed like a bomb in the middle of the negotiations and the data protection law that took effect last month is a consequence. But he will not be marking the anniversary with a "victory lap". There is still much to be done. "The fightback is just beginning," said Snowden. "The governments and the corporates have been in this game a long time and we are just getting started."