Counterintelligence holds its distinct own logic like an intellectual discipline. Conducted activities and collected information both are embraced by counterintelligence in order for threats to foreign intelligence to be countered. It can be regarded as the job of the counterintelligence of the United States to assess, exploit, identify, and exploit the activities of intelligence of the entities, groups of terrorist and foreign powers that look causing harm. Sound measures of security are vital unquestionably.