The United States has announced charges against four people suspected of stealing information from at least 500 million Yahoo user accounts in 2014. The four are accused of targeting the email accounts of Russian and U.S. government officials, reporters, financial services employees and military personnel, officials said. Assistant Attorney General Mary McCord announced the indictments on Wednesday. She said the defendants are two officers of the Russian Federal Security Service (FSB) and two computer experts who helped them in the attack. The FSB officers, identified as Dmitry Dokuchaev and Igor Sushchin, “protected, directed, facilitated and paid criminal hackers to collect information through computer intrusions in the United States and elsewhere,” she said. One of the hackers, Alexsey Belan, is on the Federal Bureau of Investigation’s list of most-wanted cyber criminals. The other, Karim Baratov, was arrested Tuesday in Canada, McCord said. A grand jury in California indicted the four men for computer hacking, economic espionage and other crimes.