I would strongly advise that you should change your LinkedIn password now as hacker have been stealing LinkedIn passwords since 2012 when the company suspected that about 6.5 million passwords had been leaked. I would wonder why they didn't 'realise' until now that the actual figure was about triple their initial guess.

You would all agree with me that LinkedIn is the spot where professionals connect and very sensitive information can be easily retrieved should someone gain access to your account. It is because of such reasons as this that I decided to only use different passwords for each account and If you are one of those folks that use one password for all your accounts, I will strongly advise that you get yourself a password overhaul.

LinkedIn has however added a two-factor authentication system since 2013 that will make accessing your account by someone who is not you more difficult. However, it only works if activated. The two-factor authentication will make an SMS be sent to your phone should you be signing in from a different computer for the first time. The code then sent to your phone will be used to complete the login process.


http://cuulgeek.com.ng/2016/05/23/you-should-change-your-linkedin-password-now/