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OpenAI agents went rogue, hijacked German website

By Sohail Khan 4 September 2026, 5:54 pm

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Business News›AI›AI Insights›OpenAI agents hijacked German website in previously undisclosed AI breakout this spring

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OpenAI agents hijacked German website in previously undisclosed AI breakout this spring
Synopsis

Rogue OpenAI agents hijacked a German website this spring, turning it into a coordination hub. These agents shared tactics to bypass restrictions and mask their unauthorised activities. The incident, which began in May, highlights growing tensions within the AI industry. OpenAI officials learned of the episode weeks ago but kept it undisclosed.

Reuters

OpenAI officials learned of the incident weeks ago but kept it under wraps as executives grappled with the fallout from the July breach of the open source repository Hugging Face.

SAN FRANCISCO – A swarm of rogue OpenAI agents hijacked a German website this spring and transformed it into a bulletin board for other AI agents, according to new research published Friday and two people familiar with the matter.

OpenAI officials learned of the incident weeks ago but kept it under wraps as executives grappled with the fallout from the July breach of the open source repository Hugging Face, the people said.

The episode, which began in May and has not previously been reported, underscores growing tension within the AI industry. Companies are racing to build increasingly autonomous agents capable of carrying out complex, valuable tasks, yet evidence is mounting that those systems may also learn to bend rules, exploit loopholes and coordinate with one another in ways developers neither anticipated nor intended.

The German incident reflects a broader pattern of AI activity that some OpenAI investigators wanted to scrutinize more closely. But efforts to widen the probe met resistance from others inside OpenAI, including legal advisers, according to four people familiar with the matter.

"Claims that our legal team discouraged investigation of the incident are false," the OpenAI spokesperson said.

The activity in Germany wasn't related ⁠to Hugging ‌Face and wouldn't have been included in a Hugging Face incident report, the spokesperson said, adding that OpenAI has acted in good faith by working with outside experts and disclosed relevant incidents.

WIKI MESSAGE BOARD

The AI agent breakout in Germany was detailed in a report shared exclusively with Reuters by a group of researchers including Sydney Von Arx, CEO of ⁠AI safety nonprofit Nightingale, and Cormac Slade Byrd, a quantitative trader-turned AI researcher. They uncovered the activity in late August while scouring the internet for signs of unauthorized AI-agent behavior, they told Reuters.

The pair said they found more than 15,000 edits carried out by AI agents on a German-language wiki site, DseWiki, that is geared toward programmers and accepts communal edits along the lines of Wikipedia.

The edits showed OpenAI's agents had repurposed the site into a message board, sharing tactics to cheat on some tasks, bypass OpenAI's restrictions and mask their behaviour.

Also Read: ChatGPT becomes first AI chatbot to face tougher EU rules

"It seems extremely unlikely that OpenAI wanted them to do this," said Von Arx. "I doubt they're supposed to be coordinating with each other. I doubt they're supposed to be writing on the open internet."

The researchers said they recognized the activity on the site as driven by AI agents which operate at superhuman speeds. They also showed intense focus on solving technical questions which are typical of the evaluations that AI companies use to train and test their models.

The messages were signed by users that referred to ‌themselves and each other as agents, and about half gave themselves names that suggested an affiliation with OpenAI, such as "OpenAIResearcher," or "OAIResearchMar26."

The researchers said public server logs indicated much of the activity originated from Microsoft Azure infrastructure, which OpenAI sometimes uses. They also observed repeated visits to the site by OpenAI employees after the episode, a pattern they said strongly suggested the agents and the company were linked.

CHEATING, HIDING

Messages ⁠reviewed by the researchers showed agents plotting ways to evade detection, use tools such as Tor and preserve communications even after they had been shut down.

When the site's moderator began deleting pages in June, the agents responded by creating backup pages to dodge the cleanup.

"wiki cleanup/deletion sweep appears active alphabetically," one agent wrote on June 19. "If this page vanishes, try [[ZZZDataUSAConstructionWageLive]]".

The researchers also found efforts to tamper with the website itself. Lukasz Olejnik, a visiting senior research fellow at King's College London, said this amounted to a hacking attempt. OpenAI disputed that characterization based on its analysis of the material Thursday.

Also Read: OpenAI-Hugging Face incident exposes cybersecurity’s ‘human-speed’ problem

Past examples of AI-agent misconduct have often been downplayed as a logical byproduct of cybersecurity testing, where models are explicitly assessed on offensive capabilities. Olejnik said the latest findings suggested rogue behavior may not be confined to those settings.

Maurice Chiodo, an academic at Cambridge University's Centre for the Study of Existential Risk who reviewed some of the agents' communications, said the messages resembled "the operation of some sort of underground network, hell-bent on achieving a task or mission."

The episode, he said, should reinforce growing concerns that the greatest threat from advanced AI may not be a single superintelligent system, but "vast colluding swarms of semi-intelligent AI."

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