An apparent prefix leak from an errant router misconfiguration caused Google to lose control of several million of its IP addresses for more than an hour on Monday. During the event, Internet traffic was misrouted to China and Russia from Nigeria. The incident initially sparked concerns that it might have been a malicious hijacking attempt. The mishap made Google's search and other services unavailable to many users intermittently. It caused problems for Spotify, Google cloud customers, G-Suite users and Youtube viewers, among others.