“The Biden-Harris Administration has been clear that the unrestricted use of untrusted ICTS poses a national security risk. Beijing has engaged in conduct that blunts our technological edge and threatens our alliances,” Raimondo said. ADVERTISEMENT “In issuing subpoenas today, we are taking an important step in collecting information that will allow us to make a determination for possible action that best protects the security of American companies, American workers, and U.S. national security. We hope to work cooperatively with these companies and conclude a thorough review,” she added. Chinese hackers last struck in a broad intrusion into an email program commonly used by American businesses.