The Department of Justice unsealed an indictment of four men for carrying out a hack of Yahoo in 2014 that netted information on some 500 million users. Two of those indicted have ties to Russia’s FSB intelligence arm, while two appear to be freelancers. What do we know about the four men who were arrested? If true, what does the DOJ’s indictment mean for the state of play between Russia and the U.S. in this newest theater of battle? Security Ledger Editor in Chief Paul Roberts speaks with Igor Baikalov of the firm Securonix to get his thoughts.