“On the second day of 2014, a piece of malware was identified on a computer in the reactor control room at the Monju nuclear power plant. The threat is said to have stolen private information from the infected machine.
The Monju fast-breeder reactor is not operational. In fact, it only operated for a few months after it was launched in April 1994. Some attempts have been made to restart it, but in May last year, the Nuclear Regulation Authority announced its official decision to prohibit its restart.”