U.S. President Obama and Vladimir Putin had a discussion about computer security issues in September 2016, which took place over the course of an hour and a half. During the discussion, which took place as a side segment during the then-ongoing G20 summit in China, Obama made his views known on cyber security matters between the U.S. and Russia. Obama said Russian hacking stopped after his warning to Putin. One month after that discussion the email leaks from the DNC cyber attack had not ceased, and President Obama decided to contact Putin via the Moscow–Washington hotline, commonly known as the red phone, on October 31, 2016. Obama emphasized the gravity of the situation by telling Putin: "International law, including the law for armed conflict, applies to actions in cyberspace."