Computers belonging to the UN's nuclear energy agency were infected with malware in recent months, it has emerged, but no data is believed to have been compromised.
The International Atomic Energy Agency (IAEA) distributed a brief note on Monday, which Reuters claimed to have seen on Tuesday, which said an internal probe found that some of the computers used by the agency's Vienna International Centre (VIC) were hit with malware.
"Data from some VIC visitors' USB drives is believed to have been compromised, including during the September 2013 Board of Governors meeting and General Conference," the note read, according to Reuters.
"The Secretariat does not believe that the USB devices themselves were infected or that they could spread the malware further," it added.
"The investigation indicates that no data from the IAEA network has been compromised."
Playing a vital role in global efforts to avoid the spread of nuclear weapons, IAEA is currently probing Iran's disputed atomic activities among other politically sensitive tasks.