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Wikipedia operator says OpenAI’s rogue agents possibly tied to data service disruption in May

By Thomson Reuters Oct 5, 2026 | 1:38 PM

By Raphael Satter

WASHINGTON, Oct 5 (Reuters) – The Wikimedia Foundation, which operates the online encyclopedia Wikipedia, says that ​heavy traffic from OpenAI’s rogue ‌agents was possibly tied to disruption that its data service experienced in May.

Here are some details:

• In a blog post issued ‌on ​Monday, Wikimedia said it could ⁠confirm “that we have ⁠discovered some activity by these ‘rogue’ OpenAI agents on Wikimedia platforms,” including a May incident that resulted in a “partial ​outage” of its Wikidata Query Service.

• Wikimedia said the disruption seemed to ⁠have been triggered ⁠as the agents visited millions of pages and ​made hundreds of thousands of data queries.

• Wikimedia ​also said that the OpenAI agents made ‌unauthorized edits to Wikimedia wiki sites, including “potentially malicious edits” to a citation tool which the foundation said were ⁠likely intended to hijack it.

• Wikimedia said its Etherpad note-taking tool was also hit ⁠by malicious ‌activity from OpenAI’s agents.

• OpenAI ⁠did not immediately return an ​email ‌seeking comment. The company ​has been ⁠scrambling to get its arms around the full scope of its rogue agent activity, Reuters has previously reported.

(Reporting by Raphael Satter; Editing by Nia Williams and ​Mark Porter)