Technical Surveillance Countermeasures (TSCM)


A Technical Surveillance Counter Measure (TSCM) sweep is also known as an electronic "bug" sweep or electronic surveillance sweep. A TSCM survey is a highly specialized service provided by experienced and trained professionals to detect the presence of technical surveillance (eavesdropping) devices. The ultimate goal of a TSCM survey is to identify existing security breaches and/or potential weaknesses in technical and communications security and to recommend corrective action to neutralize the risks.


MSA Investigations is a leading provider of professional TSCM surveys for financial institutions, corporations, law firms, and governmental and nonprofit entities. Our firm specializes in electronicTSCM eavesdropping detection, anti-surveillance services, wiretap and covert camera detection, communications security (COMSEC), and technical security.


TSCM Technicians

At MSA Investigations, our qualified TSCM technicians are among the most knowledgeable and experienced professionals in the field, having performed hundreds of TSCM sweeps for law enforcement, corporations, government entities and private individuals. 

TSCM Training

Our dedicated TSCM technicians have been extensively trained through certified instructional courses, and the New York City Police Department, on the latest state-of-the-art TSCM equipment available. To remain at the forefront of electronic surveillance, our TSCM technicians routinely attend periodic refresher courses and workshops to maintain an updated working knowledge of the ever-changing countermeasures technology field, with special attention to the new breed of more sophisticated digital eavesdropping devices.

TSCM Detection Equipment

MSA Investigations utilizes a wide array of the finest, cutting edge TSCM equipment in today’s market and we identify and evaluate new equipment and software as it becomes available to provide our clients with the highest level of service available.

Learn more about TSCM inspection equipment here

Discretion and Confidentiality

MSA Investigations' discreet TSCM services are always provided with complete confidentiality. Due to the sensitive nature of electronic surveillance and eavesdropping issues, we are committed to ensuring that your information remains as such.

At MSA Investigations we believe that our unique combination of knowledge and experience, training and state-of-the-art equipment allows us to provide clients with a high level of discreet TSCM service. Our goal is to assist clients maintain the integrity of their work environment against the threat of electronic eavesdropping.