Google's Chrome developers talked in an article describing their approach to keeping the browser secure, focusing on minimizing the frequency, duration, and severity of exposure. One tool Chrome uses is a recently open-sourced update distribution application called 'Omaha.' 'Omaha automatically checks for software updates every five hours. When a new update is available, a fraction of clients are told about it, based on a probability set by the team. This probability lets the team verify the quality of the release before informing all clients.'