The personal data stolen from one billion accounts run by US internet giant Yahoo in 2013 included personal data belonging to the employees of government agencies like the Federal Bureau of Investigation (FBI) and the National Security Agency (NSA).
The data also included sensitive information like phone numbers, passwords, security questions and backup email addresses of White House officials as well as some British authorities, the CNN reported Friday, citing Andrew Komarov, chief intelligence officer at InfoArmor.
Komarov said his company became aware in August that the data has been on sale for $300,000 on the so-called dark web, an encrypted internet network only accessible through special software.
So far, at least three parties have purchased the massive package, Komarov said, noting that the price was likely to drop after Yahoo made the breach public on Wednesday.
Yahoo said in a statement that the hack differed from another major attack in…