A computer being used at the Monju prototype fast-breeder reactor facility in Tsuruga, Fukui Prefecture, was recently discovered to have contracted a virus, and officials believe that some data from the computer may have been leaked as a result.
According to the Japan Atomic Energy Agency, which operates the facility, the computer in question was being used by on-duty facility employees to file company paperwork when the virus was first detected on Jan 2, TBS reported Tuesday.
Officials said that around 3 p.m., the computer began corresponding with a suspicious outside site. Although the computer contained many company-sensitive emails, employee data sheets and training logs, officials said they do not believe any safety-compromising data was leaked, TBS reported.
It is believed that the computer was infected with the virus when a video playback program was attempting to perform a regular software update. Personnel are investigating the cause of the incident and are creating plans to avoid any such potential safety mishaps in the future, the Japan Atomic Energy Agency said.© Japan Today