New York Times: “The newest attacks appeared to cross many lines that Mr. Biden has said he would no longer tolerate. On the campaign trail last year, he put Russia ‘on notice’ that, as president, he would respond aggressively to counter any interference in American elections. Then in April, he called Mr. Putin to warn him about impending economic sanctions in response to the SolarWinds breach.”
“The issue has become so urgent that it has begun shifting the negotiations between Washington and Moscow, raising the control of digital weapons to a level of urgency previously seen largely in nuclear arms control negotiations.”