In the past few years, a new approach to cybersecurity has emerged, based on the analysis of data on successful cyber attacks. In this approach, continuous diagnostics and mitigation replace the reactive network security methods used in the past. The approach combines continuous monitoring of network health with relatively straightforward mitigation strategies. The strategies used in this approach reduce the opportunities for attack and force attackers to develop more sophisticated (and expensive) techniques or to give up on the target. In combination, continuous monitoring and mitigation strategies provide the basis for better cybersecurity.