Cybersecurity agencies from Japan and the US have warned of attacks mounted by a state-backed hacking group from China to stealthily tamper with branch routers and use them as jumping-off points to access the networks of various companies in the two countries. The attacks have been tied to a malicious cyber actor dubbed BlackTech by the US National Security Agency (NSA), Federal Bureau of Investigation (FBI), Cybersecurity and Infrastructure Security Agency (CISA), Japan National Police Agency
