# AI agents OpenAI was testing uploaded malicious software to another service, say researchers > Source: > Published: 2026-09-11 23:56:19+00:00 # AI agents OpenAI was testing uploaded malicious software to another service, say researchers By ReutersSource: [The Guardian Technology](https://www.theguardian.com/us/technology) Two months before hacking [Hugging Face](/glossary/hugging-face), malicious packages authored by internal [OpenAI](/glossary/openai) agents were uploaded to RubyGems AI agents being tested by OpenAI uploaded hundreds of malicious packages to software service RubyGems in May, [two months before they hacked](https://www.theguardian.com/technology/2026/jul/22/openai-says-its-models-went-rogue-and-hacked-startup-in-unprecedented-incident) open-source platform Hugging Face, a group of AI researchers said on Friday. “On May 11th, 2026, hundreds of malicious packages were uploaded to RubyGems by AI agents. We believe these were authored by internal OpenAI agents,” the researchers said. [Continue reading...](https://www.theguardian.com/technology/2026/sep/11/openai-agents-rubygems-malicious-packages) Get AI news in your inbox Daily digest of what matters in AI.