I've read reports about Russian hackers but not sure if they are credible
Not credible imho. Possibly gov officials trying to cover their ass*, and distract the public from their own incompetence...?
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that sounds more plausible
Is this Crowdstrike or similar?
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No, I've heard coordinated arson attacks on key infra. The perpetrators must have known/studied the system very well. They knew exactly where to strike.
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