A software glitch left private data of more than 496,000 users of the social media network open to potential misuse.
An analyst walks us through the Meltdown and Spectre bugs.
Uber's new CEO, Dara Khosrowshahi, has criticized the way the company dealt with the security breach.
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All Yahoo accounts created before 2013 have been hacked.
The breach exposed the information of about 143 million Americans.
The breach might have been stopped with a system update. But it won't be the last big hack.
The stolen data can be used to clone credit cards.