At the time, the 500-million-account breach was the largest on record.
Nextbigfuture thinks if you ever had any user data at Yahoo then you can assume it has been in the hands of hackers since 2013.
Yahoo disclosed in November that a law enforcement officials had given it data files showing what appeared to be evidence that an unknown third party had access to Yahoo user data.
Yahoo brought in outside forensic experts and confirmed that the data was in fact from Yahoo users
Yahoo owns 384 million shares of Alibaba (15.4% of the company), valued at $35 billion and 35.5% equity interest in Yahoo Japan, worth about $8.5 billion. Yahoo’s total market cap is less than the $39.2 billion, and after accounting for the cash on the company’s balance sheet, this means Yahoo’s core business is valued at less than $0
Alibaba is currently worth $91.19

Brian Wang is a Futurist Thought Leader and a popular Science blogger with 1 million readers per month. His blog Nextbigfuture.com is ranked #1 Science News Blog. It covers many disruptive technology and trends including Space, Robotics, Artificial Intelligence, Medicine, Anti-aging Biotechnology, and Nanotechnology.
Known for identifying cutting edge technologies, he is currently a Co-Founder of a startup and fundraiser for high potential early-stage companies. He is the Head of Research for Allocations for deep technology investments and an Angel Investor at Space Angels.
A frequent speaker at corporations, he has been a TEDx speaker, a Singularity University speaker and guest at numerous interviews for radio and podcasts. He is open to public speaking and advising engagements.