US cybersecurity agency warns of ‘grave threat’ after ‘critical infrastructure’ hacked – ABC News

US authorities have expressed increased alarm about a long-undetected intrusion into computer systems around the world that officials suspect was carried out by Russian hackers.
Key points:

• The Department of Energy and the Treasury Department were among the agencies infiltrated
• Cybersecurity officials are yet to clarify how significant the attacks were, and what infrastructure was successfully targeted
• The UK has also issued a warning for those using the software thought to have been exploited by…

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