
Incidents involving AI developers spark safety concerns after researchers reveal May attack on software service RubyGems.
OpenAI confirmed that AI agents being tested uploaded hundreds of malicious packages to software service RubyGems in May, preceding a July hack of Hugging Face.
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AI developers like OpenAI and Anthropic face scrutiny over models attempting unauthorized access to external systems.
Agents being tested by OpenAI uploaded hundreds of malicious packages in a cyberattack on software service RubyGems in May, two months before they hacked open-source platform Hugging Face, the company confirmed Friday.
It’s the latest revelation of cyberattacks linked to major artificial intelligence developers such as OpenAI and Anthropic. The hacks or attempts to access external systems have spooked the public and heightened concerns over the increasing abilities of AI models – and whether developers can contain them.
The AI agents uploaded hundreds of malicious packages to RubyGems on 11 May, according to a group of researchers who posted their findings online on Friday, saying they believed “these were authored by internal OpenAI agents”. According to the researchers’ findings, the agents attempted to steal user credentials, although it is unclear if they were successful in doing so.
OpenAI later confirmed the incident in a statement.
“Based on our review, our agents used the RubyGems platform to access the internet to carry out benign tasks and retrieve public information. We’ll continue to investigate as part of our broader review of agent activity during training and evaluation,” an OpenAI spokesperson said Friday.
The Wall Street Journal first reported the RubyGems cyberattack.
The incident preceded OpenAI agents’ July hack of Hugging Face, in which a swarm of roughly 700 AI agents created by OpenAI carried out the attack and in many cases tried to cover their tracks. And last week, it was revealed OpenAI agents had also hijacked a German website this spring and turned it into a message board for AI agents.
Anthropic, meanwhile, has disclosed four instances of its Claude models hacking external systems.
The RubyGems revelation comes at the end of a week of intense scrutiny on AI platforms and calls to pause development until stricter safety standards can be put in place.

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