New York Times reporter Nicole Perlroth says it may take years to fully understand the extent of the SolarWinds cyber security breach.

Computer code displayed on screens arranged in Danbury, U.K., on Thursday, Jan. 7, 2021. In the spring, hackers managed to insert malicious code into a software product from an IT provider called SolarWinds Corp., whose client list includes 300,000 institutions. Photographer: Chris Ratcliffe/Bloomberg via Getty Images