The BBC reports that Mitsubishi Heavy Industries, a major Japanese defense contractor, is the victim of a cyberattack.
Mitsubishi Heavy Industries said viruses were found on more than 80 of its servers and computers last month. As is often the case, the systems were compromised by spearphising. Spearphishing is when hackers send highly customized and specifically targeted messages aimed at tricking people into giving away login details or loading malware onto their systems.
The BBC reports that the viruses targeted a shipyard in Nagasaki, where destroyers are built, a facility in Kobe that manufactures submarines and parts for nuclear power stations, and a plant in Nagoya, where the company designs and builds guidance and propulsion systems for rockets and missiles.