65M Tumblr account records are up for sale on the underground market – Computerworld

8 months ago Comments Off on 65M Tumblr account records are up for sale on the underground market – Computerworld

A few weeks ago, Tumblr notified users of a data breach that resulted in the theft of user email addresses and hashed passwords. The company did not say how many accounts were affected, but recently someone put the data up for sale and the number is: 65 million records.

The data is being sold on a Tor dark market website called TheRealDeal by a user named peace_of_mind who also sold 167 million user records stolen from LinkedIn. Recently he also posted offers for 360 million accounts allegedly stolen from MySpace and 40 million from adult dating website Fling.com.

According to Tumblr’s security note on May 12, attackers obtained user email addresses with salted and hashed passwords in early 2013, before the company was acquired by Yahoo.

Security researcher Troy Hunt obtained a copy of the data and uploaded it to Have I been pwned?, a website that he maintains and which lets users check if they were affected by known data breaches. According to him, the email addresses are accompanied by salted SHA1 password hashes.

65M Tumblr account records are up for sale on the underground market – Computerworld