The Federal Communications Commission has added California-based Digitalsystem Technology to a list of companies posing risks to the US national security, citing links to Chinese telecom companies and its ownership by a Chinese national. The FCC also said that it was denying the Los Angeles-based IT company permission to provide international telecommunications services, saying that it could be exploited by Chinese threat actors.In its order, FCC cited concerns about Digitalsystem Technology partnerships with Hong Kong-based PCCW, China Unicom and China Mobile. The FCC also noted that Digitalsystem's website cited Huawei, Dahua, Hikvision, ZTE and others as partners, which was later…