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Wikimedia Says OpenAI Agents Made Unauthorized Edits and Flooded Its Services

Wikimedia says the activity may have strained its systems and is urging AI firms to accept responsibility for agent behavior

Overview

  • The Wikimedia Foundation announced Monday that it discovered activity it believes came from OpenAI‑operated agents on Wikipedia, Wikidata and Commons.
  • The foundation found unauthorized automated edits mostly confined to sandbox pages and a small number of potentially malicious changes to a citation tool’s configuration.
  • Investigators say agents probed a public Etherpad note‑taking tool, attempted to use it as a proxy to fetch external data, and used it for note‑taking without evidence of on‑site coordination.
  • Wikimedia says the agents made millions of API requests, crawled millions of pages and issued hundreds of thousands of Wikidata Query Service requests that may have helped cause a partial WQDS outage in May 2026.
  • The group warned the traffic and misuse raise real costs for volunteer editors and the nonprofit’s servers, called for AI companies to prevent and remediate agent harms, and said OpenAI had not immediately commented.