The objective of this research was to analyze the processes of business counterintelligence as a strategy to shield the SMEs from competitive intelligence services. It was framed in the convergence of research approaches given in 2 phases: quantitative phase (Likert type questionnaire applied to 385 Colombian businessmen), qualitative phase (semi-structured interview to 4 police officers with more than 25 years of experience in police counter-intelligence) and the conclusions are formulated taking into account the convergence of approaches by dimension/category. The significant findings allude to the existence of a perception on the part of the entrepreneurs about the counterintelligence systems implemented in the SMEs they manage. However, experts on the subject agree on the lack of knowledge of risk factors regarding information vulnerability and the lack of strategies to shield SMEs from competitive intelligence services.