The Colombian State has fought for many decades against the scourge of corruption. However, during the last few years, this problem has worsened and has gone beyond its traditional conception -bribery, improper awarding of contracts, clientelism and diversion of public resources- to become a broader process in which actors and actions coming from drug trafficking and illegal groups are linked. These corrupt practices, coming from insurgents infiltrated in the Armed Forces, drug traffickers and active personnel of the public forces at the service of illegal groups, prevent the materialization of the principles and objectives of the Social State of Law and its institutions, to the extent that they concentrate in the hands of a few the resources and goods that should be destined to collective interests; They increase the costs of administering public goods and services; focus decision-making in favor of private interests; erode citizen confidence in institutions and respect for authority, and contribute to weakening the legitimacy of the Colombian State. That is why, with the implementation of counterintelligence tasks, a significant reduction of corruption within the Armed Forces can be achieved. Likewise, the number of infiltrated personnel in the institution and personnel at the service of narco-terrorist groups will be mitigated.