The Pareto Principle: If 20 percent of effort yields 80 percent of the results. Qualys Top 4 is a free tool that builds on the QualysGuard Cloud Platform. Users can scan environments to determine whether or not Windows PCs have effectively implemented the top four security controls. IT admins can use reports to identify Windows PCs that are out of compliance, and take the necessary steps to implement the necessary changes necessary to make them more resilient to attack. The new free service is available at https://qualys.com/top4.”]

