Germany’s espionage investigation into former intelligence chief August Hanning has widened, with the Federal Interior Ministry examining possible breaches of secrecy regulations during his time as a senior government official. The development raises further questions about the handling of classified intelligence, including material supplied by Germany’s international security partners.

Germany’s Federal Interior Ministry confirmed on Thursday, 8 October, that it was examining whether confidentiality regulations may have been breached during August Hanning’s tenure as state secretary between 2005 and 2009. The examination follows his arrest on suspicion of espionage and attempted treason, and the discovery of a suspected network supplying sensitive intelligence documents from within Germany’s Federal Intelligence Service (BND).

According to the latest information on the ministry’s examination, officials have ordered an immediate review. The ministry has not disclosed its scope or whether investigators have identified any additional security breaches during Hanning’s government service.

Hanning, 80, headed the BND from 1998 until 2005 before moving to the Interior Ministry, where he remained until 2009. An investigating judge at Germany’s Federal Court of Justice subsequently ordered his continued detention following his arrest on Tuesday.

His former chief of staff, identified under German privacy rules as Manfred D., has also been remanded in custody. Prosecutors suspect that the two men maintained an arrangement through which confidential intelligence documents were obtained in exchange for payment.

Thousands of intelligence documents under investigation

Federal prosecutors believe the arrangement began around 2010, several years after Hanning left the BND, and continued until June 2022.

Investigators suspect that approximately 2,000 documents were obtained through Hanning’s former colleague, who remained in senior administrative positions at the intelligence service under successive directors.

The material reportedly included assessments of Russia’s military activities, information concerning Iran’s nuclear programme and intelligence originating from foreign partner services. Some documents were intended for senior German government officials, including the chancellery.

Prosecutors suspect that Hanning used confidential material in his private security consultancy and prepared at least one analysis for a foreign intelligence contact. Whether the analysis was ultimately delivered remains unclear.

The investigation consequently extends beyond the suspected unauthorised removal of German state documents. Intelligence supplied by foreign governments is frequently shared under restrictions governing its subsequent distribution. Any compromise of such material could require Germany to assess whether sensitive foreign sources, methods or assessments were exposed.

BND president Martin Jäger has confirmed that the service initiated extensive internal investigations after suspicions emerged. The affair has also drawn attention from the Bundestag’s parliamentary intelligence oversight body, whose chairman, Marc Henrichmann, has called for a comprehensive investigation.

Hanning acknowledges possession of confidential files

Hanning’s lawyer, Leon Kruse, has rejected the accusations while acknowledging that his client possessed confidential documents.

In a statement released following the court hearing, Kruse denied that Hanning had passed information to the detriment of Germany or received payment for doing so. He maintained that further investigations would establish that his client was being wrongly prosecuted.

The defence statement establishes an important point in the proceedings: possession of confidential material is acknowledged, but its alleged commercial exploitation and transfer to foreign intelligence services remain disputed.

Investigators must establish how the documents were acquired, whether payments were made and what classified information, if any, reached foreign recipients.

Azerbaijan rejects alleged intelligence connection

The identity of the foreign intelligence service involved remains another unresolved question.

German reporting has raised the possibility of a connection to Azerbaijan, although federal prosecutors have not publicly identified the foreign service concerned.

Azerbaijan has rejected suggestions that its intelligence authorities were involved. Baku reportedly lodged a diplomatic protest with the German government, challenging the allegations and their potential consequences for bilateral relations.

The possibility of a Russian connection has also attracted attention because of Hanning’s international business contacts and his association with former Chancellor Gerhard Schröder. However, no evidence establishing Russian involvement has been publicly presented by German prosecutors.

Hanning’s foreign commercial relationships alone do not establish that classified information was transferred to any particular government.

Investigation originated in separate kidnapping case

The circumstances that brought Hanning to investigators’ attention have added another dimension to the affair.

The suspected intelligence breach emerged during an investigation connected to German businesswoman Christina Block, who is facing criminal proceedings over allegations concerning the abduction of her children.

Hanning had reportedly provided advisory services connected to the affair. Searches conducted in September 2025 led investigators to confidential BND material, prompting a separate examination of how the documents had been obtained.

The discovery subsequently developed into an intelligence investigation involving federal prosecutors and Germany’s domestic criminal investigation authorities.

German government faces questions over intelligence safeguards

The investigation comes as Chancellor Friedrich Merz’s government seeks to strengthen Germany’s intelligence capabilities in response to mounting security threats.

The BND’s ability to obtain and exchange intelligence depends partly on the confidence of partner organisations. Concerns now centre on whether documents supplied by allied services were included in the material allegedly transferred, and whether Germany must inform partners about potential exposure.

The case is also prompting scrutiny of restrictions placed on former senior intelligence officials who subsequently enter private consultancy work.

At the German government’s press briefing on 7 October, a spokesman acknowledged the seriousness of the allegations but declined to discuss the proceedings, referring questions to federal prosecutors and the courts.

The Interior Ministry’s decision on 8 October to examine Hanning’s earlier government service potentially broadens the inquiry beyond the suspected transfer of BND documents between 2010 and 2022.

Investigators must now determine the extent of any unauthorised disclosure, identify any foreign recipients and assess whether information supplied by Germany’s security partners was compromised.

Both men remain presumed innocent unless convicted.

A case of treason on an unprecedented scale is emerging at Germany’s foreign intelligence service, in what German media say could shake the entire agency.

According to the investigative team of WDR, NDR and Süddeutsche Zeitung (SZ), August Hanning, the former head of the Federal Intelligence Service (BND), is being investigated for alleged espionage detrimental to the state and intelligence activities.

Hanning’s tenure at the BND ended in November 2005.

But he is accused of having illegally obtained secret information for several years after he left the service, which gathers and assesses information on foreign, security, and economic threats.

He was arrested at his home in Nordwalde, near Münster in western Germany, on Tuesday (6 October).

Der Spiegel reported that police arrived at 6.41AM and took him away in a black minibus at 8.58AM.

Another former senior BND employee was also detained in the Bavaria region — apparently the former head of Hanning’s office, who worked for the intelligence service until spring 2026.

Neither German authorities nor Hanning’s representatives had commented on the case by Tuesday noon.

What investigative journalists found

According to investigative journalists, Manfred D. leaked top-secret information from within the BND to Hanning until 2022.

According to Der Spiegel, which cited investigators’ findings, Hanning and Manfred D. agreed, as early as spring 2010, that the latter would, in return for payment, gather intelligence from the BND for his former boss, which Hanning could use in his private security consultancy work.

Investigators are working on the assumption that, in at least one case, Hanning prepared a security analysis for a foreign intelligence service.

According to WDR, NDR and SZ, it was not for Russia.

In another case, he allegedly used information from internal BND documents when communicating with a foreign agent.

According to information from security circles obtained by WDR, NDR, and SZ reporters, Hanning came under scrutiny after his home and offices were searched in September last year, when the State Criminal Police Office (LKA) was investigating the case of steak empire heiress Christina Block.

Abduction of children

Hamburg prosecutors accused her of commissioning the abduction of her two youngest children in late 2023 amid a custody dispute.

According to investigators, Hanning was involved in an earlier attempt to abduct them, accusations he denies.

While assessing material seized from Hanning last year, LKA officers found an electronic data storage device with explosive contents, according to the investigative journalists.

The former official apparently had access to top-secret BND documents from the recent past which, under no circumstances, should have been in his possession.

In total, he obtained around 2,000 documents. In many cases, these were briefings for the so-called intelligence situation meeting at the federal chancellery, where the heads of security agencies exchange information every week.

They included highly sensitive reports, for example, on Iran’s nuclear programme or the Russian military. According to security sources, they also included reports from foreign partner services.

A leak of such material is regarded by intelligence services as an absolute catastrophe. Friendly intelligence services could lose trust in the BND and cut off the institution from crucial information.

After assessing them, the LKA Hamburg police team handed the seized documents over to federal authorities.

And in May 2026, the Federal Public Prosecutor General’s Office ultimately opened confidential proceedings against Hanning and his alleged BND informant. It remains unclear over what period the former intelligence chief was supplied with secret internal information.

According to security sources, the most recently discovered documents date from June 2022.

It also remains unclear how the alleged BND mole managed to remove material from the secured agency. The BND was asked for a statement on the case.

Hanning’s lawyers have not yet responded to a brief request for comment on the allegations.

An affair of historic proportions

For the BND, this is already the second serious incident in the space of a few years.

In 2022, the espionage case involved Russia, when a former head of a BND unit was accused of spying for Moscow together with another man.

It concerned top-secret information on BND cyber operations that was leaked from the service.

As the Tagesschau website noted, if the suspicions against Hanning are confirmed, this would be an espionage affair of historic proportions.

German history has never before seen an alleged case of treason involving such a senior former top official.

According to Der Spiegel, this is unprecedented. This is particularly so because, for many years after leading the intelligence service, Hanning remained among the most important officials in Germany’s security apparatus.

Before becoming BND president, he was responsible for protecting classified information at West Germany’s representation in East Germany.

After serving at the chancellery, including as coordinator of the federal intelligence services, the lawyer, who holds a doctorate, took over the leadership of the BND in 1998.

At the end of 2005, after leaving the intelligence service, Hanning became a state secretary at the interior ministry. He retired four years later.

Questionable business

According to German media, his subsequent activities were seen as problematic. He became known as a businessman and security consultant with a company in Switzerland.

Its German subsidiary was hired for a time in the custody dispute between Block and her former husband.

According to prosecutors, in 2023 he allegedly planned, together with an associate, to “discredit Block’s former husband through false allegations of paedophilia”.

Hanning and his alleged accomplice apparently tried to plant a hard drive containing child sexual abuse images and videos on the father of Block’s children.

The investigation has not yet been concluded. Hanning has previously denied all allegations in the case.

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