Department of Energy, you say?
State-sponsored hackers have breached the US' nuclear weapons agency
"Foreign hackers have breached the networks of the US Department of Energy and National Nuclear Security Administration, according to separate reports from Politico and Bloomberg. While there aren’t many details on what happened just yet, it’s believed at least three states were also hacked in connection to the cybersecurity attack."
>https://www.engadget.com/nnsa-doe-cyberattack-232628623.html