The Nuclear Regulatory Commission (NRC) has been working with the Department of Homeland Security to analyze federal assets that potentially could have been involved in the reported cyber incidents. Seen here, scientists from Argonne National Laboratory in Lemont, Illinois. Argonne generates advanced reactor and fuel cycle technologies that enable generation of nuclear power. (Argonne National Laboratory)

As it became clear that the Department of Energy was part of the ongoing SolarWinds hack, it prompted concern among industry and government security experts that the nation’s critical infrastructure, including the electric grid, nuclear systems and power plants might have been compromised.

The DOE formally confirmed the hackers' tentacles had reached into the agency, noting that the malware injected had been isolated to its business networks and hadn't impacted mission-critical national security functions of the National Nuclear Security Administration (NNSA) and other departments.

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