LinkedIn is notifying all users to change passwords as an attack 4 years ago was much broader in scope than initially thought.  This is always a beneficial process periodically for any online website where an account or membership exists.

http://money.cnn.com/2016/05/19/technology/linkedin-hack/

LinkedIn was hacked four years ago, and what initially seemed to be a theft of 6.5 million passwords has actually turned out to be a breach of 117 million passwords.  On Wednesday, the professional social network company acknowledged that a massive batch of login credentials is being sold on the black market by hackers. The worst part about it is that, because people tend to reuse their passwords, hackers are more likely to gain access to 117 million people’s email and bank accounts. The advice for everyone who uses LinkedIn at this point is: Change your password and add something called two-factor authentication, which requires a text message every time you sign in from a new computer.

 

Hi Harry,

To make sure you continue having the best experience possible on LinkedIn, we’re regularly monitoring our site and the Internet to keep your account information safe. We’ve recently noticed a potential risk to your LinkedIn account coming from outside LinkedIn. Just to be safe, you’ll need to reset your password the next time you log in.

Here’s how:

1.Go to the LinkedIn website.
2.Next to the password field, click the “Forgot your password” link, and enter your email address.
3.You’ll get an email from LinkedIn asking you to click a link that will help you reset your password.
4.Once you’ve reset your password, a confirmation email will be sent to the confirmed email addresses on your account.
 
Thanks for helping us keep your account safe,
The LinkedIn Team