In the mail, LinkedIn says, “on May 17, 2016, we became aware that data stolen from LinkedIn in 2012 was being made available online. This was not a new security breach or hack. We took immediate steps to invalidate the passwords of all LinkedIn accounts that we believed might be at risk. These were accounts created prior to the 2012 breach that had not reset their passwords since that breach. Information involved was Member email addresses, hashed passwords, and LinkedIn member IDs (an internal identifier LinkedIn assigned) from 2012.”

“LinkedIn has taken significant steps to strengthen account security since 2012. For example, we now use salted hashes to store passwords and enable additional account security by offering our members the option to use two-step verification,” assures email send by the social network platform.

LinkedIn says, “we have several dedicated teams working diligently to ensure that the information members entrust to LinkedIn remains secure. While we do all we can, we always suggest that our members visit our 'Safety Center' to learn about enabling two-step verification, and implementing strong passwords in order to keep their accounts as safe as possible. We recommend that you regularly change your LinkedIn password and if you use the same or similar passwords on other online services.”

Remember, there were some stories (Hacked LinkedIn Users’ Data Is On Sale…) about LinkedIn users’ data theft and sell incident.

A hacker nicknamed ‘Peace’ was offering this data for sale online on an illegal Dark Web marketplace ‘The Real Deal’ for five bitcoins (approximately $2,200). It was claimed that the database of 167 million emails and hashed passwords belongs to LinkedIn users.