Russia hacking attempts into U.S. grid confirmed

Russia hacking attempts into U.S. grid confirmed:

"“a number of Russia government entities hacked into the U.S. energy sector contributing to the broader power grid, with successful intrusions into U.S. systems.”
The report says there were no details about when the hacking happened, only that they were stopped immediately when they were noticed.
One official said 4,000 U.S. targets of Russian cyber attacks were notified last year about their vulnerabilities, and there were immediate consequences."