Biden warns Putin on Russian ransomware attacks

President Biden spoke by phone with Russian President Vladimir Putin on Friday and urged him to take action to disrupt criminal groups operating in Russia that are behind recent ransomware attacks in the United States.

Biden also warned that the U.S. would “take any necessary action to defend its people and its critical infrastructure in the face of this continuing challenge,” according to a White House readout.

The conversation came after a ransomware attack last week on software company Kaseya impacted up to 1,500 companies, many of which were vulnerable small businesses in...