There are provided measures for improvement of distributed behavioral monitoring. Such measures exemplarily include receiving activity data indicative of a behavior of an entity to be monitored from at least one sensor sensing activity of the entity, wherein the at least one sensor is provided to an endpoint associated with said entity, assessing an activity represented by said activity data as malicious, validating a result of said assessing based on a categorization assigned to said entity in relation to said at least one sensor, and deciding, based on a result of said validating, on a response to said assessing.