CybersecurityDevices often used at factories and labs where systems kept offline for securityA disassembled USB drive from the same brand as those used by Japan's Ground Self-Defense Force, which were found to contain a virus. (Photo by Taro Yokosawa)TATSUYA SUDO and TORU TSUNASHIMAJune 26, 2026 01:54 JSTTOKYO -- Counterfeit USB drives loaded with China-linked viruses similar to the one that victimized Japan's Self-Defense Forces have spread across online retailers, infecting computers at factories and research facilities in a variety of industries, Nikkei has found.