The National Nuclear Security Administration (NNSA), the U.S. agency that manages the nation’s stockpile of nuclear weapons, is the latest in federal agencies hacked, according to a new report on Thursday.
Officials close to the matter told Politico that the NNSA has evidence of hackers gaining access to the agency’s networks in a mass spy operation that also hacked various other U.S. agencies. The officials don’t yet know what information hackers have been able to access or steal – and it may take weeks to find out.
Power grid affected too https://money.usnews.com/investing/news/articles/2020-12-17/us-bans-utilities-supplying-defense-facilities-from-buying-power-grid-items-from-china
Some place in Washington state was the power grid hack, don't have a link yet.
AP says nothing happened to the grid. Well not yet. Other sources
https://www.wnep.com/article/news/nation-world/us-cybersecurity-agency-warns-of-grave-threat-from-hack/507-9d931d4f-5c21-4964-b20d-9737eedee5c3
https://www.cisa.gov/news/2020/12/16/joint-statement-federal-bureau-investigation-fbi-cybersecurity-and-infrastructure