The original LinkedIn 2012 databreach turns out to have been much larger than the estimated 6.5 million username and passwords that were stolen. There are really more than 100 million records compromised and LinkedIn is sending emails to these users that they need to change their password.
The bad guys however, are jumping on this as well and are sending phishing emails with a fake LinkedIn login page. If you fall for this scam and log in on their fake page, your credentials will be stolen and your LinkedIn account compromised and/or your computer infected with all kinds of malware.
If you receive an email that seems to come from LinkedIn, hover over the links and make sure they are legit before you click. Even better, do not click on anything and just go to LinkedIn using your browser and change your password. If you have used your LinkedIn password for other sites, it’s time to change those as well!”
Go to ww.LinkedIn.com, click Help, (bottom right) and choose Changing Your Password. In case you want to get another layer of password protection, LinkedIn also offers dual factor authentication by which you can have a one time numerical code sent to your smartphone each time you need to access your LinkedIn account.