User reputation regarding exposure of data objects in a cloud computing environment is determined. Behavioral information, which indicates behavior of a user for a cloud computing environment corresponding to one or more data objects in the cloud computing environment that are associated with the user, is analyzed. Based on analyzing the behavior information, a plurality of characteristics for the user that indicate exposure of the data object(s) associated with the user is determined. Each of the plurality of characteristics reflects the behavior of the user pertaining to the one or more data objects. Based on compliance of the plurality of characteristics with corresponding ones of a plurality of rules, a reputation of the user for exposing data objects in the cloud computing environment is determined. The reputation of the user is indicated to an entity with which the user is associated.