Germany’s former intelligence chief August Hanning, 80, was arrested on suspicion of treason and espionage after prosecutors alleged he passed classified documents to a foreign intelligence service, sparking a major scandal involving thousands of sensitive materials.
August Hanning, the former head of Germany’s Federal Intelligence Service (BND), was arrested on October 6, 2026, on charges of treason, espionage, and attempted treason after prosecutors alleged he shared classified information with a foreign intelligence agency. Hanning, who led the BND from 1998 to 2005, is accused of exchanging over 2,000 documents with his former chief of staff, Manfred D., for financial gain, including material related to Iran’s nuclear program and Russian military activities. The investigation, which began with Hanning’s involvement in a high-profile child custody case, has raised concerns about the integrity of Germany’s intelligence community.
The Investigation’s Unfolding
The scandal emerged from an inquiry into the alleged kidnapping of children from Christina Block, a German steakhouse heiress. During a search of Hanning’s property in September 2025, investigators discovered classified BND documents, prompting an investigation. Prosecutors revealed that Hanning and Manfred D. had agreed in 2010 for D. to supply intelligence in exchange for payment, with D. later serving as chief of staff to Hanning’s successors until 2026. The documents, many marked for internal use, were allegedly used to prepare analyses for foreign agents, though it remains unclear if they reached their intended recipients.
Der Spiegel reported that Hanning’s activities may have targeted Azerbaijan, though prosecutors have not confirmed the country. The case has drawn comparisons to past espionage scandals, including the 1960s case of Heinz Felfe, who headed the “Counterintelligence: Soviet Union” division while simultaneously working for the Soviet secret service, the KGB, and the 2014 case of a BND employee exposed as a spy for the US CIA. BND President Martin Jaeger stated the agency had launched extensive internal investigations as soon as suspicions emerged, emphasizing that there can be no compromises on internal security.
Manfred D. served as Hanning’s chief of staff and later held the same role for several subsequent BND presidents between 2012 and 2026, according to prosecutors. During this time, he had access to confidential information, which he allegedly passed to Hanning in exchange for remuneration. Hanning used the material in private consulting work, including drafting an analysis for an officer of a foreign intelligence service. The prosecutor’s office noted that it has yet to be determined if the material reached the intended recipient.
The investigation into Hanning’s actions also touched on the case of Christina Block, a steakhouse chain heiress on trial for ordering the kidnapping of her children, in which Hanning was accused of accepting a commission from Block. However, prosecutors have not linked this case to the espionage allegations. Hanning’s arrest comes amid broader debates over Germany’s intelligence reforms, which last month involved the government signing off on a major overhaul of intelligence agencies with broader powers for covert operations.
Political and Institutional Reactions
German opposition leaders condemned the allegations, with Green MP Konstantin von Notz calling the case a truly outrageous and deeply disturbing story
and stating that These are serious and grave allegations.
Clara Bünger, domestic policy spokesperson for the socialist Left Party group in the Bundestag, went even further, saying, The investigations against former BND chief Hanning show once again: The intelligence services themselves are a security risk.
Günter Krings of the conservative governing party, the Christian Democratic Union (CDU), warned that The mere suspicion that a former BND chief is selling secrets is damaging to trust in our security agencies.
Marc Henrichmann, chair of the Bundestag’s intelligence oversight committee, said that Hanning’s alleged behavior would represent trampling his official duties underfoot.
The case has also reignited scrutiny of Hanning’s post-BND career, including his work as a global consultant in the fields of security and business.
Unanswered Questions and Legal Implications
Key questions remain unresolved, including the identity of the foreign intelligence service Hanning allegedly aided and whether the classified materials compromised Germany’s alliances. The BND is experiencing a reputational crisis, with critics arguing that intelligence agencies of allied countries could lose confidence in the BND and stop providing it with vital information. If convicted of espionage constituting treason, Hanning could face between six months and 10 years in prison.
The scandal has drawn comparisons to historical espionage cases in Germany, including the 1960s case of Heinz Felfe, who headed the Counterintelligence: Soviet Union
division while simultaneously working for the Soviet secret service, the KGB. A senior West German counter-intelligence figure was revealed in 1990 to have spied for East Germany during the 1980s and was subsequently found guilty of treason. In 2024, former domestic intelligence chief Hans-Georg Maassen stated that he is now under surveillance by the agency he previously led due to alleged right-wing political extremism, which he refuted. These precedents highlight the long-standing challenges of maintaining integrity within Germany’s intelligence community.
Prosecutors have not disclosed the specific foreign intelligence service linked to Hanning, but reports suggest it was not Russia, which Germany views as its main foe amid the war raging in Ukraine. The case has also prompted discussions about the BND’s role in international alliances, with concerns that leaks could erode trust with allied agencies. As the investigation continues, the outcome could have significant implications for the country’s national security policies and public confidence in its institutions.