Director of National IntelligenceJohn Ratcliffe sits during a Senate Intelligence Committee nomination hearing at the Dirksen Senate Office building on Capitol Hill, Washington, on May 5, 2020. AFP
Director of National IntelligenceJohn Ratcliffe sits during a Senate Intelligence Committee nomination hearing at the Dirksen Senate Office building on Capitol Hill, Washington, on May 5, 2020. AFP

Russia probable culprit behind massive cyber attack, US intelligence agencies say