Someone hid a recording device in toilet paper, plugged it into a USB port behind a TV in an OpenAI executive conference room and left it there. Two days later, staff found it.
US authorities are now investigating. A 35-year-old engineer who had worked at the company since July 2025 has been arrested over allegedly planting the device in OpenAI’s San Francisco office.
This wasn’t a spare meeting room down the hall. According to the complaint, the room was used to discuss confidential research, future products and business partnerships. That’s why the investigation is being taken so seriously.
A device hidden behind the TV
Employees discovered the device on Sept. 30, the complaint said. OpenAI believes someone had placed it there two days earlier, wrapped in toilet paper and connected to a USB port behind a television.
Prosecutors said security camera footage shows the employee looking behind the TV. They also said a second, similar device was found in the engineer’s bag.
Then there’s the chatbot trail. The complaint cites queries submitted to a chatbot account linked to the engineer’s wife. Those queries asked about building and hiding recording devices and accessing them remotely.
OpenAI says its own models helped find him
OpenAI’s statement puts one detail up front: the company said it used its own AI to figure out what the hardware was and trace it back to a person.
“We discovered a sophisticated recording device that was hidden inside one of our offices. We used our models to understand the device and where it had come from, identifying that a specific employee had planted it a few days earlier,” OpenAI said in a statement.
“We referred the matter to the FBI, and we’re grateful to the agents and prosecutors who moved quickly to make an arrest. The FBI’s investigation is ongoing and we will continue to support their work,” the company said.
An AI company crediting its AI for catching a mole makes for a tidy story. But the statement doesn’t explain what the models did that the camera footage and the device in the bag didn’t already show.
What OpenAI says wasn’t taken
The more important question for customers is whether anything left the building. OpenAI addressed that directly.
“At this time, we have no indications of this individual inappropriately accessing or exfiltrating model weights, source code, or customer data. The employee was terminated,” the company said.
Read that first phrase carefully. “At this time” describes what OpenAI has found so far. It doesn’t promise anything about what the investigation turns up later.
The company also framed the incident as a national security matter, and as an example of its broader security program at work.
“We take protecting our technology, data, and people seriously, and as a matter of national importance. Our security program is designed to protect against a wide range of threat actors, from insider risks to cybercriminals to nation states, and this case is an example of how AI can help address these sophisticated security threats,” OpenAI said.
No court has ruled yet
OpenAI fired the engineer and notified the FBI. A court hasn’t ruled on any of the charges yet. Everything above about the footage, the second device and the chatbot queries comes from the complaint and from prosecutors.
So far, the public record holds a roll of toilet paper behind a conference room TV, a matching device in a bag and a set of chatbot questions about hiding recorders. Prosecutors will have to prove what that evidence means in court.
