Iowa State University

ITInformation Technology

LinkedIn Users Advised to Change Passwords After Security Breach

This news item expired July 31, 2012. It may contain out-of-date information.

LinkedIn, the world's largest professional social network with more than 150 million users, recently suffered a major security breach. More than 6.4 million passwords were published on a hacker's forum. It is likely that the hackers also know the email addresses associated with the passwords. The hackers have not disclosed how many of the 150 million passwords are in their possession.

All LinkedIn users are encouraged to change their passwords.

LinkedIn acknowledged the breach and implemented special handling for accounts with published passwords. Passwords for those accounts are no longer valid. Users of these accounts will receive email notifications with information on how to reset their passwords. For security reasons, these emails will not contain any links, just information on resetting passwords from the site.

We expect the hackers to try your LinkedIn email address and password on other websites. Because of this, you should recall other sites where the same email address and password is in use. For example, if you use the same email address and password on Facebook, or, you must change your password on those websites as well.

Additional information on the LinkedIn security breach can be found in online at:

Information on creating a strong password can be found on Microsoft's Online Privacy and Security & Safety page: