Military Counterintelligence Service
Germany's federal military counterintelligence and security service, responsible for protecting the Bundeswehr against espionage, sabotage and unconstitutional activity.
Last updated August 26, 2026
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Overview
The Military Counterintelligence Service, known in German as the Militärischer Abschirmdienst or MAD, is Germany's military counterintelligence and security agency. It is one of the country's three federal intelligence services and operates within the Bundeswehr under the authority of the Federal Ministry of Defence. Its formal institutional name is the Bundesamt für den Militärischen Abschirmdienst. MAD's central role is defensive rather than battlefield intelligence collection. It protects German armed forces personnel, installations, information and operations from foreign espionage, sabotage, terrorism and other security threats. It also investigates unconstitutional or extremist activity within the Bundeswehr, conducts security screening for military and civilian personnel, supports the protection of classified information, and contributes to the security planning of sensitive military buildings and facilities. The service can collect and assess intelligence, but it does not have prosecutorial powers; criminal investigations and prosecutions are handled by the competent law-enforcement authorities, including the Federal Public Prosecutor's Office in serious espionage cases. The agency emerged from security and liaison structures associated with the Blank Agency before the Bundeswehr was formally established. It took its present form in 1956, after the creation of the West German armed forces in November 1955. For much of its early history, its headquarters operated under the name Amt für die Sicherheit der Bundeswehr. That designation was replaced in 1984 as part of an institutional reform following the Kießling Affair, a major intelligence and political scandal that exposed weaknesses in the service's investigative procedures and oversight. MAD's work is complementary to, rather than identical with, that of Germany's other intelligence bodies. The Federal Office for the Protection of the Constitution performs domestic constitutional-protection functions across German society, while the Federal Intelligence Service focuses primarily on foreign intelligence. Within the Bundeswehr, MAD concentrates on personnel, facilities, deployments, counterespionage, security and extremist threats. Military strategic reconnaissance and signals intelligence are assigned to other Bundeswehr structures, including the Strategic Reconnaissance Command and the Cyber and Information Domain Service. The service underwent major organizational change after German reunification and the integration of the former East German National People's Army into the Bundeswehr. Its network of regional offices expanded during the integration period and was later reduced as the armed forces were downsized. In 2017, MAD was moved from the chain of command associated with the Inspector of the Armed Forces Base and placed directly under the Federal Ministry of Defence as a higher federal authority. The reform was intended to strengthen its status as a federal intelligence service, improve professionalization and integrate it more closely into Germany's national security architecture, including cyber-related security responsibilities. MAD is headquartered in Cologne and maintains regional offices across Germany. Reference material describes a workforce of approximately 1,300 military and civilian employees; a 2019 budget figure of €113,252,000 has also been reported in reference material, but it is not repeated here as a current financial measure. The agency's public profile has been shaped both by its routine security work and by controversies involving unlawful surveillance, flawed assessments and alleged mishandling of sensitive information. More recent responsibilities have included countering extremism in the Bundeswehr, protecting German military support for Ukraine against Russian sabotage and investigating suspected espionage involving defence personnel and procurement structures.
History
The Military Counterintelligence Service developed from liaison and security bodies connected with the Blank Agency, the West German predecessor structure involved in planning the postwar armed forces. After the Bundeswehr was established in November 1955, MAD was formed in its present institutional shape in 1956. Its early mission was to protect the new armed forces from infiltration, espionage and sabotage during the Cold War. The organization was initially known as the Amt für die Sicherheit der Bundeswehr, or Federal Armed Forces Office of Security. During the Cold War, MAD performed military-focused domestic counterintelligence functions comparable in some respects to those of the civilian Federal Office for the Protection of the Constitution. It examined security risks among personnel, investigated suspected espionage and protected Bundeswehr facilities and secrets. It was not responsible for strategic reconnaissance of enemy forces, which belonged to other military intelligence structures, and it did not possess prosecutorial authority. The service became the subject of intense criticism during the 1970s and 1980s. From 1974 onward, MAD conducted secret surveillance of Hildegard Holz, secretary to Defence Minister Georg Leber, after incorrectly suspecting her of spying for East Germany's Ministry for State Security. Leber learned of the operation in early 1978 but did not report it to the Bundestag until the matter was publicly discussed by the magazine Quick. He resigned as defence minister in February 1978, accepting responsibility for the political consequences. The Kießling Affair of 1983 was an even more consequential crisis. MAD investigated General Günter Kießling, a senior Bundeswehr officer serving in NATO, on the basis of allegations later associated with East German intelligence. The investigation treated claims about his private life as evidence of a security risk. Defence Minister Manfred Wörner authorized Kießling's early retirement, but the general was rehabilitated in February 1984 when the allegations were discredited. The affair led to the removal of the MAD commander and an independent review chaired by former Interior Minister Hermann Höcherl. The resulting recommendations prompted a rapid reorganization, including a larger civilian component and changes to the service's procedures and oversight. German reunification transformed MAD's scale and responsibilities. When the former East German National People's Army was incorporated into the Bundeswehr in October 1990, the service operated seven groups and 28 regional offices. Subsequent reductions in the size of the armed forces led to a smaller regional structure, with the number of offices reduced to 14 by 1994. The statutory basis for the service is the MAD Law of 20 December 1990, as subsequently amended, including through legislation enacted in 2005. In the twenty-first century, MAD's remit increasingly included extremist threats within the Bundeswehr, security risks surrounding overseas deployments and the protection of sensitive information and infrastructure. In 2017, the service was moved from subordination to the Inspector of the Armed Forces Base and placed directly under the Federal Ministry of Defence as a higher federal authority. The reform sought to give MAD a status more comparable to Germany's other federal intelligence services, improve its integration with national security structures and strengthen capabilities related to cyber defence. The agency's contemporary work has included scrutiny of right-wing extremism in the Bundeswehr, including incidents involving the Special Forces Command. It has also responded to the security implications of Germany's military assistance to Ukraine. In 2023, a procurement official was arrested on suspicion of spying for Russia, while in 2024 MAD investigated the compromise of a Luftwaffe communication later broadcast by Russian state media. These cases illustrate the service's continuing focus on counterespionage, information protection, insider threats and the security of German military operations.
- 2020
Expanded scrutiny of extremism and KSK security
[1]The service was involved in investigations and security reviews following right-wing extremist incidents associated with the Special Forces Command.
- 2017
Direct subordination to the Defence Ministry
[1]MAD became directly subordinate to the Federal Ministry of Defence and received a more prominent position in federal security planning.
- 1990
MAD Law enacted
[1]The statutory framework for MAD was established by the Military Counterintelligence Service Law of 20 December 1990.
- 1990
Integration after German reunification
[1]The incorporation of the former East German armed forces into the Bundeswehr substantially expanded MAD's organizational responsibilities.
- 1984
Post-Kießling restructuring
[1]Following the Höcherl review, MAD was reorganized and additional civilian positions were introduced.
- 1983
Kießling Affair
[1]A flawed security investigation into General Günter Kießling triggered a major review and restructuring of MAD.
- 1978
Leber surveillance scandal becomes public
[1]The unauthorized surveillance became a major political controversy and contributed to Defence Minister Georg Leber's resignation.
- 1974
Surveillance of Hildegard Holz begins
[1]MAD began monitoring the defence minister's secretary on an erroneous suspicion of espionage for East Germany.
- 1956
MAD established in its present form
[1]The service was formed from earlier military security and liaison structures associated with the Blank Agency.
- 1955
Bundeswehr established
[1]The creation of the Bundeswehr provided the institutional setting for the modern German military counterintelligence service.
Products and positioning
A specialized, defensive military intelligence and security service operating inside Germany's federal security system. MAD is positioned between military protection functions and domestic intelligence oversight, focusing on threats directed at the Bundeswehr rather than strategic reconnaissance of foreign forces.
Security service
Personnel security screening
MAD vets prospective and serving Bundeswehr personnel for security risks, including susceptibility to espionage, extremist activity and unauthorized disclosure. Its role extends beyond initial recruitment screening: personnel may remain subject to security-related assessment during service when relevant information emerges.
Intelligence service
Counterintelligence investigations
The agency investigates suspected foreign intelligence activity directed at the Bundeswehr. This includes assessing contacts, recruitment attempts, leaks and other indications that military personnel, facilities or defence institutions may be targeted by hostile intelligence services.
Military security
Deployment shielding
MAD supports the protection of Bundeswehr missions and personnel abroad. Deployment shielding focuses on counterintelligence, hostile observation, insider risks, information security and other threats that could compromise German military operations or deployed units.
Defence security
Facility and classified-information protection
MAD helps protect Bundeswehr properties, sensitive construction projects, classified information and military capabilities from espionage and sabotage. Its activities include security advice and assessments connected with facilities requiring heightened protection.
Domestic military security
Extremism and unconstitutional-activity monitoring
Within the armed forces, MAD examines indications of anti-constitutional and extremist activity. This responsibility became especially prominent in connection with right-wing extremist incidents and concerns about extremist networks in military units.
Controversies
2024
Luftwaffe communication interception investigation
After Russian state media published an intercepted Luftwaffe discussion concerning the possible supply of Taurus missiles to Ukraine, MAD was tasked with investigating how the communication had been compromised.
2020
Disclosure of KSK-related security information
An MAD lieutenant colonel was accused of showing photographs of illegally held weapons to members of the Special Forces Command and warning an officer that MAD might investigate him. The officer was suspended and reportedly lost access to MAD facilities.
1983
Kießling Affair
MAD treated allegations about senior NATO commander Günter Kießling as evidence of a security risk. Defence Minister Manfred Wörner placed him into early retirement, but Kießling was rehabilitated in February 1984 after the allegations were discredited. The episode resulted in the removal of the MAD commander and a formal review of the agency's practices.
1978
Hildegard Holz surveillance scandal
MAD secretly surveilled Hildegard Holz, a secretary to Defence Minister Georg Leber, after incorrectly suspecting her of espionage for East Germany. The operation was conducted without the minister's knowledge. Once the matter became public, it produced a major political crisis and Leber resigned in February 1978.
Brand decisions
2023
Protect German military support for UkraineOtherBackground
Russia's invasion of Ukraine increased the risk of espionage and sabotage directed at German defence institutions and military assistance.
Action taken
MAD expanded its counterintelligence focus on protecting Bundeswehr support activities and investigated suspected Russian espionage involving a defence procurement official.
Aftermath
The case highlighted the agency's role in protecting procurement and support structures connected with Germany's assistance to Ukraine.
2020
Increase scrutiny of extremist threats inside the BundeswehrStrategyBackground
Right-wing extremist incidents, particularly those associated with the Special Forces Command, prompted intensified examination of personnel and unit security.
Action taken
MAD participated in investigations and broader reviews of extremist and insider threats within the armed forces.
Aftermath
The agency's counter-extremism role became a prominent part of public discussion about Bundeswehr security.
2017
Move MAD under direct Defence Ministry authorityStrategyBackground
Germany sought to strengthen MAD's position among federal intelligence services and integrate military counterintelligence more closely with national security planning.
Action taken
From 1 August 2017, MAD became directly subordinate to the Federal Ministry of Defence as a higher federal authority.
Aftermath
The change gave MAD a more direct institutional relationship with civilian defence leadership and supported expanded responsibilities, including cyber-related security work.
1984
Implement reforms following the Höcherl reviewStrategyBackground
The Kießling Affair exposed serious weaknesses in investigative judgment, internal controls and oversight.
Action taken
MAD was reorganized, its commander was removed and the service created more room for civilian participation.
Aftermath
The reforms were intended to professionalize the agency and reduce the risk of similar investigative failures.
Recent events
- 2020
MAD reports foreign influence activity during the COVID-19 pandemic[1]
Other
The agency reported that foreign intelligence services were using the pandemic environment to influence public opinion, including efforts associated with Chinese narratives directed at defence institutions.
- 2017
MAD placed under direct Federal Ministry of Defence authority[1]
Leadership change
A governmental reorganization made MAD directly subordinate to the Federal Ministry of Defence and expanded its role within Germany's federal security architecture.
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