Russian hackers have allegedly obtained sensitive defense information technology by targeting American contractors, said several federal agencies in a bulletin posted Wednesday. From at least January 2020 through February 2022, the agencies “have observed regular targeting of U.S. cleared defense contractors by Russian state-sponsored cyber actors,” said the Department of Homeland Security-run Cybersecurity and Infrastructure Agency (CISA), Federal Bureau of Investigation (FBI), and National Security Agency (NSA). “The actors have targeted both large and small [defense contractors] and subcontractors with varying levels of cybersecurity protocols and resources,” the bulletin continued. Contractors who worked in a number of areas including missile and weapons development, vehicle and aircraft design, surveillance and reconnaissance, and communications systems were targeted. In the bulletin, the agencies did not provide specific details on how they obtained evidence of Russian state-sponsored hackers allegedly targeting U.S. defense contractors. Also unclear is what Russian agency or agencies facilitated the hacks. The bulletin’s publication …