It's worse

The huge government hack has been reported as including Commerce, Treasury and DHS.  Now, they're admitting the Department of Energy was also hacked.  The Department of Energy is in charge of nuclear  weapons.

Agencies within the Department of Energy (DOE), including portions of the agency charged with maintaining the nation’s nuclear weapons stockpile, were breached as part of a massive hack on an IT group that has hit almost a dozen federal agencies, officials said Thursday.

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"At this point, the investigation has found that the malware has been isolated to business networks only, and has not impacted the mission essential national security functions of the Department, including the National Nuclear Security Administration (NNSA)."

  The Hill

Sure, we believe you.

They found suspicious activity in networks belonging to the Federal Energy Regulatory Commission (FERC), Sandia and Los Alamos national laboratories in New Mexico and Washington, the Office of Secure Transportation at NNSA, and the Richland Field Office of the DOE.

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NNSA is responsible for managing the nation's nuclear weapons, and while it gets the least attention, it takes up the vast majority of DOE's budget. Similarly, the Sandia and Los Alamos National Labs conduct atomic research related to both civil nuclear power and nuclear weapons. The Office of Secure Transportation is tasked with moving enriched uranium and other materials critical for maintaining the nuclear stockpile.

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The attack on the Federal Energy Regulatory Commission may have been an effort to disrupt the nation's bulk electric grid. FERC doesn't directly manage any power flows, but it does store sensitive data on the grid that could be used to identify the most disruptive locations for future attacks.

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The hackers have been able to do more damage at FERC than the other agencies, and officials there have evidence of highly malicious activity, the officials said, but did not elaborate.

The officials said that the Cybersecurity and Infrastructure Security Agency, which has been helping to manage the federal response to the broad hacking campaign, indicated to FERC this week that CISA was overwhelmed and might not be able to allocate the necessary resources to respond.

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The hackers are believed to have gained access to the federal agencies’ networks by compromising the software company SolarWinds, which sells IT management products to hundreds of government and private-sector clients.

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[T]he people said, noting that the investigation is ongoing and they may not know the full extent of the damage “for weeks.”

  Politico