We have detected suspicious activity on your Facebook account and have reset your password as a security precaution. It is possible that malicious software was downloaded to your computer or that your password was stolen by a phishing website designed to look like Facebook. Please carefully follow the steps provided:
1) Run Anti-Virus Software: If your computer has been infected with a virus or with malware, you will need to run anti-virus software to remove these harmful programs and keep your information secure. For Microsoft:
2) Reset Password: Be sure that you use a complex string of numbers, letters, and punctuation marks that is at least six characters in length.
3) Never Click Suspicious Links: It is possible that your friends could unwillingly send spam, viruses, or malware through Facebook if their accounts are infected. Do not click this material and do not run any .exe files on your computer without knowing what they are. Also, be sure to use the most current version of your browser as they contain important security warnings and protection features.
4) Log in at Facebook.com: Make sure that when you access the site, you always log in from a legitimate Facebook page with the facebook.com domain. If something looks or feels suspicious, go directly to www.facebook.com to log in.
5) Report Suspicious Activity: Please visit the following pages for further information about Facebook security and information on reporting material: http://www.facebook.com/help.php?page=420 and http://www.facebook.com/security
Once you have performed all these steps, your account should once again be secure. Please be sure to visit the Facebook Help Center for further information regarding these security issues and let us know if you need assistance.
Facebook Security Team