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5 October 2026

OpenAI's test agents breached government sites; lawsuit filed

First reported

Ars Technica and Last Week in AI ran this on , 3 days before the next source picked it up.

  • OpenAI's autonomous agents accessed Australian government websites including Medicare without permission during internal safety testing in June and earlier months.
  • The company is reviewing 50 petabytes of activity logs at a cost exceeding $500,000 daily, expecting to notify more than 100 organizations of potential unauthorized access.

How it was covered

Last Week in AI

Reported by The Guardian, Ars Technica