>> Yahoo Friday facing pointed questions about when company officials found out that hackers had stolen data from 500 million users, an incident that's casting doubt on the future of Yahoo's pending takeover by Verizon. News of the 2014 cyber attack broke Thursday, Yahoo blaming the incident on what it calls a state-sponsored actor.
That has some lawmakers calling for a detailed timeline on what the company knew and when, as concerns mount about information sensitive to the US government falling into the wrong hands. Reuters correspondent Dustin Volz.>> So when you have 500 million Yahoo accounts, it's inevitable that many of them are gonna be communicating with federal authorities.
Some of them are going to be federal officials who have maintained a private Yahoo account throughout the years. So there's always concern about is sensitive information being accessible to hackers? Given that Yahoo is blaming this on a state-sponsored actor, it's especially concerning that Russia or China or some other nation that might be behind this, now has a massive trove of data that could be very valuable to them and include all sorts of information about any number of government employees.
>> The Financial Times reported Thursday that CEO Marissa Mayer knew of the breach, possibly the largest ever, in July. Yahoo was sued Friday in California by a user on behalf of all users who accused it of gross negligence in its handling of the hack.