The impacts of cybercrime and the proliferation of cyberattacks are unsettling at best and very dangerous at worst. Not only are we experiencing increases in nefarious activity for personal gain, we are seeing threats against nation-states, the likes of which society has not experienced before. Is it time for the world’s governments to implement international rules to protect citizens’ use of the internet? Brad Smith, president of Microsoft, argues strenuously for a digital Geneva convention.