The sanctions, foreshadowed for weeks by the administration, would represent the first retaliatory action announced against the Kremlin for last year’s hack, familiarly known as the SolarWinds breach.
In that intrusion, Russian hackers are believed to have infected widely used software with malicious code that enabled them to access the networks of at least nine agencies, part of what U.S. officials believe was an operation aimed at mining the secrets of the American government.
The Biden administration is preparing to announce sanctions in response to a massive Russian hacking campaign that breached vital federal agencies, as well as for election interference, a senior administration official said Wednesday night.
The measures are to be announced Thursday, according to the official, who was not authorized to discuss the matter by name and spoke on condition of anonymity to The Associated Press.
It was not immediately clear what, if any, other actions might be planned. Officials had previously said they expected to take actions both seen and unseen.
The actions would represent the second major round of sanctions imposed by the Biden administration against Russia. Last month, the U.S. sanctioned seven mid-level and senior Russian officials, along with more than a dozen government entities, over a nearly fatal nerve-agent attack on opposition leader Alexei Navalny and his subsequent jailing.