Yahoo!

Yahoo Inc said on Sept. 22 that at least 500 million of its accounts were hacked in 2014 by what it believed was a state-sponsored actor, a theft that appeared to be the world's biggest known cyber breach by far. 

Technology and media company Yahoo has confirmed that a major set of data was stolen from within the company's network in 2014. The data includes personal information of at least 500 million users.

An internal investigation conducted by Yahoo Inc. confirmed that a major data leak was performed by what the company called a "state-sponsored actor."

Yahoo has begun shutting down some of its digital magazines as the struggling online pioneer's latest reorganization plan.

Yahoo reported April 21 a 93 percent slide in quarterly profit from a year ago, while revenues rose modestly in disappointing quarterly results for the struggling Internet pioneer.

Net profit for the first quarter tumbled to $21.1 million from $312 million in the same period last year, amid what chief executive Marissa Mayer called "encouraging revenue growth" of eight percent.

US authorities threatened to fine Yahoo $250,000 a day if it failed to comply with a secret surveillance program requiring it to hand over user data in the name of national security, court documents showed Thursday.