Suspected Russian Hack Said to Have Gone Undetected for Months

Russia's foreign intelligence service is suspected of being behind a major espionage operation that targeted U.S. federal government agencies, as well as other public and private entities. As the smoke clears, it appears the attack began as early as March, and that 18,000 public and private entities may have been exposed. Reporter Dustin Volz will explain what we know. Amanda Lewellyn hosts. Learn more about your ad choices. Visit megaphone.fm/adchoices