AfD Email Breach Exposes 421,000 Messages in Anonymous Online Archive

AfD Email Breach Exposes 421,000 Messages in Anonymous Online Archive

AfD Email Breach Exposes 421,000 Messages in Anonymous Online Archive

AfD Email Breach Exposes 421,000 Messages in Anonymous Online Archive

AfD Email Breach Exposes 421,000 Messages in Anonymous Online Archive

Pierluigi Paganini
October 20, 2026

A data breach exposed AfD emails, while an anonymous site published AI summaries of 421,000 messages, raising questions about authenticity and privacy.

Germany’s Alternative für Deutschland (AfD) confirmed on October 19 that its hosting provider was hacked in September and that mailboxes were copied. By the time the confirmation reached Bild, a website called hexane.cc had already been online for hours offering an index of what it claims are 421,179 internal party emails.

“In September 2026 there was a hacking attack on a hosting provider used by our party.” By then the website hexane.cc had been online for several hours with an index of what it says are 421,179 of the party’s emails. In place of the emails, the site shows summaries written by software, sorted into categories that include racism and antisemitism and graded from Low to Critical. International Cyber Digest (ICD), a cybersecurity news account on X, examined it on 19 October and reported that the index includes Gauland’s mailbox and that the newest message is dated 12 September 2026. According to the summaries ICD relayed, Gauland, the party’s 85-year-old honorary chairman and former co-leader, forwarded a 2018 email about a “Hitler pilgrimage” by a former judge on the party’s internal court in Thuringia.” AfD told told Bild. “A district board member sent a Christmas card with a swastika and the words “Heil Hitler”. Staff at the party’s Berlin headquarters discussed luring a photographer to an event and throwing him out by force, in a thread signed off “hail and victory”.

The AfD’s statement gave a limited account of the incident. The party said the attackers copied parts of a few mailboxes, most of which had not been used for years, and did not access the leadership’s current accounts. However, the online index includes messages dated as recently as September 12, 2026, raising questions about the party’s account.

The website hexane.cc does not publish the emails themselves. Instead, it provides AI-generated summaries grouped into categories such as racism and antisemitism, with severity ratings from Low to Critical. The site operators have not identified the AI software used to create them. When users try to open a record, the site displays the message “source text not published for this record.” So far, none of the summaries has been linked to an original email that can be verified.

That’s an important detail that’s getting lost in the coverage. The summaries describe swastikas, Nazi greetings, Christmas cards bearing Heil Hitler, and a thread at the federal party headquarters signed off with “hail and victory.” If authenticated, some of this material would matter significantly in ongoing court proceedings about whether the party can be banned. But right now all of it is filtered through an anonymous operator’s software, and the original texts remain unpublished.

Bild is the only German news outlet confirmed to have examined files from the archive directly, although it reviewed only a very small sample. The files appeared to be genuine party records, including identity documents, invoices, bank statements, membership applications, and regional member lists. They also included the identity card of Markus Frohnmaier, deputy leader of the AfD’s parliamentary group in the Bundestag. Berlin-based security researcher Lilith Wittmann, who exposed a flaw in the CDU’s campaign app in 2021, wrote on X that she believed the leak was genuine and the reported attack method was plausible.

The hacker reportedly told the International Cyber Digest account on X that they gained access through “a single unpatched party website” and then reached the mail servers. The AfD has confirmed that its hosting provider was targeted, but the reported entry method has not been independently verified. The archive’s own file names offer another clue: one server is labeled “afd_exfil.” The term “exfil” is commonly used for a system that stages stolen data before attackers transfer it out of a network.

The AfD is currently contesting in court its classification as a confirmed right-wing extremist organization by Germany’s domestic intelligence agency. Lawmakers in the Bundestag and Thuringia are separately debating whether to seek a formal party ban, which under German law can only come from the Federal Constitutional Court. The leak appeared on October 19, while the Cologne Administrative Court is actively weighing whether the intelligence agency may publicly apply the extremist designation, and two months before the AfD plans to seek the election of one of its leaders as state premier in Saxony-Anhalt.

Within two hours of the first posts about the archive on X, some accounts were using it to argue that the AfD should be banned. If authenticated, the most legally relevant emails would be those showing how the party’s national headquarters operates and handles internal disciplinary cases. This is because a ban case focuses on the party as an organization, not on individual members. So far, none of the summaries has been linked to an original email.

The website describes itself as an independent archive published in the public interest and claims to have minimized personal data. However, Bild found that the files it reviewed included membership applications and member lists containing full names and home addresses of people whose only apparent connection to the story was their party membership. By the afternoon of October 19, the site’s About, Method, and Support pages were returning server errors, leaving visitors unable to access its own explanations of how the archive was created and managed.

Follow me on Twitter: @securityaffairs and Facebook and Mastodon

Pierluigi Paganini

(SecurityAffairs – hacking, AfD)



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