Yahoo 'secretly monitored emails on behalf of the US government'

Company complied with a classified directive, scanning hundreds of millions of Yahoo Mail accounts at the behest of NSA or FBI, say former employees

Yahoo last year secretly built a custom software program to search all of its customers' incoming emails for specific information at the request of US intelligence officials, according to a report.

The company complied with a classified US government directive, scanning hundreds of millions of Yahoo Mail accounts at the behest of the National Security Agency (NSA) or FBI, two former employees and a third person who knew about the program told Reuters.