President Joe Biden believes ransomware attacks are a "rising national security concern," the White House said Friday. White House press secretary Jen Psaki told reporters that the U.S. needs to keep its focus on attacks like the one on the world's largest meat processing company, "and what we can do to address it." "Certainly this is a priority to him and an area where we will be spending a significant amount of time in the coming months," Psaki said, noting the U.S. is reviewing issues including how it works on such threats with private companies.