 In just two decades, digital technologies have come to touch every aspect of society, reshaping media, commerce, security, and even social life. The benefits have been profound, but so are the harms. Rampant disinformation, privacy violations, cyber attacks, and the worsening of inequalities, we have yet to develop global frameworks to govern digital technology. It's clear greater stewardship of cyberspace is needed to ensure the digital revolution promotes human security, equity, and prosperity. But what should global tech governance look like? Who should write the rules? And how?