checking for unexplained income. There are cases where such checks simply revealed an inheritance, and no further questions were raised. Detecting other vulnerabilities may come from things that are simply good management. If someone is constantly clashing with colleagues, it is good people management, not uniquely security management, for a manager to talk with the individual, or have them talk to an Employee Assistance Program. It is not considered a disqualification to seek mental health assistance; it may be considered excellent judgement. For people with especially high security access, it may be requested that they see a therapist from a list of professionals with security clearance, so there is not a problem if something sensitive slips or they need to discuss a conflict. References Counterintelligence Types of espionage Cycle security Cycle security Military intelligence