Embodiments of the present invention provide apparatuses and methods for identifying computer systems that pose a threat for potential dissemination of confidential information, and thereafter, scanning the computer systems for unauthorized activity related to potential dissemination of confidential information. Embodiments of the invention comprise compiling a list of user computer systems that are at risk of accessing, using, or disseminating confidential information; determining whether the computer systems on the list are available for scanning; and scanning the computer systems on the list to identify an incident related to potential or actual threats or breaches of confidential information.