Yahoo

A Canadian man pleaded guilty Tuesday to charges stemming from a massive breach at Yahoo that authorities say was directed by two Russian intelligence agents and affected at least a half billion user accounts.

Former Yahoo CEO Marissa Mayer admitted on Capitol Hill Wednesday that the Silicon Valley giant still doesn’t understand how hackers managed to compromise the information of billions of Yahoo users.

Yahoo! parent company Verizon said that all 3 billion of Yahoo!'s accounts were hacked, up from the original figure of 1 billion.

If you merge the letters from AOL and Yahoo, take a few away, and add a "t," you have Oath, which is what Verizon is planning to call a new entity combining the two companies after its acquisition of Yahoo is complete.

U.S. officials are planning to unveil charges Wednesday related to the theft of personal data that affected hundreds of millions of Yahoo users and disrupted the company’s sale to Verizon, according to people familiar with the matter.

Add that to the 1.5 billion accounts that have already been compromised.

Yahoo is punishing CEO Marissa Mayer and parting ways with its top lawyer for the mishandling of two security breaches that exposed the personal information of more than 1 billion users and already have cost the company $350 million.

Yahoo has sent out a new warning to some users regarding allegedly state-sponsored cookie-forging attacks. It is believed that hackers were able to steal the company's cookie source code to conduct the attacks.

If you held one of the billion Yahoo accounts that were compromised in a 2013 data breach, we're sorry.

Yahoo is coming under fire from security experts after the tech giant confirmed that more than one billion customer accounts have been compromised in a massive data breach.