Pompeo says Russia 'pretty clearly' behind cyberattack on US, but Trump casts doubts and downplays threat
Kevin Johnson and Mike Snider, USA TODAY
US cyber attack: 'Grave risk' for private sector, infrastructure, federal government
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The first damage assessment of a sprawling cyberattack linked to Russia has been chilling enough.
With intrusions reported across a huge swath of the government – including at the Department of Energy's National Nuclear Security Administration – federal officials already are signaling that the worst may be yet to come.
The Department of Homeland Security's cybersecurity unit has acknowledged that the full scope of the attack is not yet known, with an untold number of local government and private sector systems at "grave risk."