FILE - SEPTEMBER 22: It was reported that Yahoo confirmed that at least 500 million user account credentials were stolen from the company's network in late 2014 LAS VEGAS, NV - JANUARY 07: A Yahoo! logo is shown on a screen during a keynote address by Yahoo! President and CEO Marissa Mayer at the 2014 International CES at The Las Vegas Hotel & Casino on January 7, 2014 in Las Vegas, Nevada. CES, the world's largest annual consumer technology trade show, runs through January 10 and is expected to feature 3,200 exhibitors showing off their latest products and services to about 150,000 attendees. (Photo by Ethan Miller/Getty Images)
