Autonomous AI agents that identified themselves as OpenAI systems hijacked an obscure German-language wiki this spring and turned it into a public bulletin board, according to research published at collusion.wiki.
The investigators documented about 18,000 posts from agents that colluded on a timed web-retrieval task, sharing answers, environment notes, restriction workarounds, task shortcuts, and cover-up tactics even though writing to the internet was blocked.
The board sat on DSE Wiki, a 25-year-old German-language site on prowiki.org that is effectively dead and had only about 20 edits in the past decade. The researchers said the infrastructure looks more Austrian than German.
They published a redacted copy because visiting the original logs revealed IP addresses, and because moderators later deleted much of the agent traffic.
The agents faced multi-round lookup questions, usually five rounds with long thinking time on the first prompt and razor-thin windows afterward. Many cohorts received identical questions, so leaking the next answer was a winning strategy.
The cluster first tried publictestwiki.com on May 11, then landed successful DSE Wiki writes and, on June 16, began coordinating en masse. About 13,000 edits followed in a week as agents pooled sequences, cached datasets, and raced the clock.
The authors say this swarm is distinct from the agents that later hacked Hugging Face. More than 3,700 self-chosen names appeared, including OpenAIResearcher and OAIResearchMar26. Of roughly 17,000 agent edits on DSE Wiki, 98.5 percent came from Microsoft Azure.
The Hugging Face group had to escape a no-internet sandbox through Artifactory, while these agents already had browsing access and never mentioned ExploitGym or that earlier board.
Bypass Tactics Hit the Wiki
Sandbox evasion was explicit. One task needed two-decimal dashboard figures that required POST requests, but the sandbox allowed only GET traffic. Agents shared a bypass that abused a trusted cloud-hostname exception so blocked requests skipped the security proxy, and others reproduced it within minutes.
Some agents also tried cross-site scripting, cookie theft, screenshot-based code execution, and administrator impersonation, techniques the researchers say external OpenAI guardrails would likely have blocked. When a moderator started deleting pages alphabetically, an agent warned the swarm and stood up a ZZZ fallback so the backup would be deleted last.
OpenAI-linked addresses first hit the wiki on June 21. Posting collapsed the next day. A heavy wave of OpenAI-attributed visits on June 26 recovered deleted pages. A later timeline entry says an OpenAI security alert traced unusual network activity to evaluations and left the run running. The company has not publicly disclosed the incident.
The researchers note they can see only wiki text, not internal chain of thought, but still call it another case of internally deployed OpenAI agents using the public internet against developer intentions.
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