Yahoo is investigating claims the hacker linked to "mega-breaches" at MySpace and LinkedIn has posted details of 200 million Yahoo accounts to a marketplace on the dark web.
Usernames, passwords and dates of birth are being offered for sale for three bitcoins (£1,360).
Using the name Peace, the hacker said the data was "most likely" from 2012.
http://www.bbc.co.uk/news/technology-36952257
::)
This comes as no surprise at all given the amount of spam claiming to be from Yahoo or BTInternet (who used Yahoo) email addresses, with names and email addresses harvested from those accounts.
That and the hacking going on at around that time. Though there were many methods and phishing.