Facebook is undoubtedly the most popular social networking site to ever hit the Internet, and with more than 500 million registered users, criminal networks find it to be an attractive target.
The social media giant has made slow but steady progress in their efforts to offer better security and privacy for users, but it remains the responsibility of account holders to make sure they are utilizing all of the security features available.
One important feature allows members to monitor their profile for any unauthorized access to their Facebook account.
Digital Inspiration posted an article titled "Check if Someone Else is Using Your Facebook Account" which highlights the login alert security feature on Facebook.
Go to the "Account" drop-down menu in the upper right hand corner of your Facebook profile page and choose the "Account Settings" option.
Select the "Account Security" option from the security menu.
Here, you can choose to browse Facebook over a secure HTTPS connection (United States only), as well as opt to have Facebook notify you by email if your account is accessed from a different machine.
The page also shows a list of devices that have recently accessed your account, and an approximation of the origin of the login based on the IP address - though IP addresses can be spoofed or proxies can be used to disguise locations.
Nevertheless, it will show you if your account has been accessed by someone other than yourself. If this is the case, you can choose to logout the unauthorized device.
You also have the option of downloading a record of all the information you have submitted to your account, and it's a good idea to do a quick audit to double check you that you are not displaying any sensitive information.
The Digital Inspiration article also has a short video that will walk you through some of the other security features available.
You can also check out "A Facebook Security Lockdown Guide" which provides a checklist of necessary security options and protocols to help protect you from exploitation.