The Pentagon will as soon as March increase cybersecurity requirements for contractors working on "critical" technology programs. In a previously unreported Nov. 26 letter to the Senate Armed Services Committee, then-Deputy Defense Secretary Patrick Shanahan responded to concerns lawmakers had about defense contractors managing the government's controlled unclassified information (CUI). Shanahan has since taken over as acting defense secretary. Lawmakers were specifically concerned that defense contractors are being held "to a lower security standard," according to the letter viewed by...