A Defense Contractor Gave Their Personal AI Agent Access to a Secure Pentagon System
NEWS | 30 October 2026
Earlier this year, sources tell WIRED, a contractor caused a security incident at the Department of Defense by connecting a secure centralized system used by multiple intelligence agencies to their personal account for Claude Code, Anthropic’s AI coding agent. It appears that the agent used by the contractor, who is employed by the global consulting firm Accenture, then sent information about the DOD system, including login credentials, to a high-risk, third-party website. The centralized system contains controlled unclassified information (CUI), which is considered sensitive and not to be released to the public without review. CUI can include information about critical infrastructure, nuclear submarine propulsion, and vulnerabilities to chemical and biological terrorism. Additionally, security experts say, access to the system could allow for the exploitation of even more sensitive ones. “It puts all the data that’s in there at risk,” says a source aware of the incident, who requested anonymity as they were not authorized to speak to the press. If the third-party software was compromised, “there could be somebody out there with the ability to log into a secure environment without anyone knowing. It’s 100 percent a national security threat and could cause irreparable harm.” A DOD spokesperson tells WIRED that “the Department does not comment on the status of its networks or systems.” “We take all concerns seriously. These allegations were thoroughly and independently investigated and found to be without merit. We fully complied with our legal and contractual obligations,” an Accenture spokesperson tells WIRED. When pressed, Accenture didn’t offer clarification on who conducted the investigation, or dispute that there had been what could be characterized as an incident. The Accenture employee is alleged to have connected a secure production environment to their personal Claude account so as to allow an AI agent to write and deploy code. Claude is currently barred from being used by DOD staff. (Anthropic directed WIRED to the company’s usage policy, which instructs users not to use its products to “interfere with the operation of military bases and related infrastructure” or to “bypass security controls such as authentication systems, end point protection, or monitoring tools without authorization.”) The Accenture employee’s AI agent ran on the DOD network for two months before it was identified and the vulnerability could be patched. Sources indicate that despite the security risks posed by the AI coding agent, Accenture employees did not treat the incident as severe or urgent. DOD employees and federal contractors are required to report any cybersecurity incident within 72 hours of its discovery, but sources indicate Accenture did not initially report the breach to the government at all.
Author: Jason Parham. Vittoria Elliott. Les Shu. Paresh Dave. Joel Khalili. Molly Higgins. Nena Farrell. Isabella Ward. Ben Dowsett. Boone Ashworth.
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