Security researchers are disturbed it took Yahoo three years to discover that details of over 1 billion user accounts had been stolen back in 2013. The stolen database may have even included information on email ids of U.S. government and military employees. Yahoo said back in November it first learned about the breach when law enforcement began sharing with the company stolen data that had been provided by a hacker. It’s still unclear how the theft occurred, making it unclear if the data was legitimate. The FBI has only said its investigating the Yahoo hack, and on Wednesday, the agency didn’t provide any new details.”]