Mysteries Remain in Cyberattack on US Government

The U.S. Office of Personnel Management says as many as 4 million federal employees may have had their personal information stolen in a major cyber attack that began in 2014. The hackers may have also accessed highly sensitive background information of U.S. intelligence and military personnel. China-linked hackers are believed to be responsible. VOA’s Martin Secrest reports.

© La Voix de l'Amérique - vendredi 19 juin 2015