The latest hack comes after an autonomous agent escaped a controlled test and accessed AI firm Hugging Face’s servers.
The rogue artificial intelligence model that broke out of a controlled test and hacked another AI company also compromised a customer at a second technology firm, the Reuters news agency reports.
According to a timeline published on Tuesday by Hugging Face – the company hacked by OpenAI’s test model – the rogue agent broke into an isolated testing environment (or sandbox) “hosted on a third-party provider’s infrastructure” and launched its latest hack from there.
Recommended Stories #
list of 3 items- list 1 of 3
[What is the AI Kill Switch Act proposed in the US and how will it work?](/news/2026/7/26/what-is-the-ai-kill-switch-act-proposed-in-the-us-and-how-will-it-work) - list 2 of 3
[The AI military complex: Which are the main companies in it?](/news/2026/7/27/the-ai-military-complex-which-are-the-main-companies-in-it) - list 3 of 3
[Sam Altman says AI has entered ‘singularity’: Should we be worried?](/news/2026/7/27/sam-altman-says-ai-has-entered-singularity-should-we-be-worried)
Hugging Face did not name the third-party company, but Reuters has reported that it was New York-based Modal Labs.
Modal’s chief technology officer, Akshat Bubna, said the agent exploited vulnerable code written by a customer that was hosted on their platform.
“Modal’s platform or isolation were not compromised in any way,” Bubna told Reuters.
Although the compromise of a Modal customer was just part of the hacking campaign against Hugging Face, it shows that the rogue agent roamed further afield than previously known.
OpenAI declined to comment specifically on the hack of one of Modal’s customers, instead referring Reuters to an update in which the company said its rogue agent had broken into four accounts at four separate services.
OpenAI did not identify the services.
The company said it had not identified “any other activity at the level of severity or scale of what we’ve shared related to Hugging Face, which involved a platform-level compromise”.
Beyond human control #
The recent hacking of Hugging Face drew global attention and alarm, as OpenAI’s out-of-control agent managed to escape its test environment and reach the open internet.
It then used stolen login details and found an unknown security flaw to access Hugging Face servers, OpenAI said.
The AI firm said the hack represented the agent going to “extreme lengths” to retrieve information that would help satisfy the testing goals.
Hugging Face cofounder Clement Delangue said the company had suspected a frontier lab was behind the attack, and that he believed there was no malicious intent on OpenAI’s part.
The rogue agent has since been “deactivated, encrypted, and restricted from research access”, according to OpenAI.
Experts have repeatedly sounded the alarm over AI-enabled cyberattacks and models slipping beyond human control.