Facebook stalkers come from every walk of life and can include ex-lovers, ex-friends, co-workers, current friends, group acquaintances and complete strangers. Although some app developers claim they can reveal people stalking your account, Facebook doesn't permit the use of third-party profile-tracking apps. You detect stalkers by watching for Facebook cyber stalking behaviors.
Ignore Stalker Reporting Apps
Apps that track site activity are not just useful to stalkers, but also could be used by thieves and hackers to steal your personal information or pass on malware. If any app claims it can track users who spend the most time viewing your profile, posts or photos, report the app to Facebook. On the app's page, click "Report/Contact," select a reason for the report in the Report to Facebook section and click the "Submit" button.
Check for Message and Comment Patterns
Stalkers on Facebook often interact with their victims via messages and comments. For example, you're likely dealing with a stalker if someone you don't know sends you a message that contains personal questions, false accusations or rants about religion, taboos or horrifying topics. You're also likely dealing with a stalker if someone seems to be following you around too much -- for example, if someone frequently replies to your comments on Facebook and/or on other sites where users log in and comment with their Facebook IDs.
Learn to Recognize Other Patterns
A person you know or a stranger is likely stalking you if you receive notifications that he has repeatedly tagged you in photos that aren't about you or related to your interests. A stalker might also attempt to become friends with your family and friends to feel closer to you or to gain access to additional personal information about you and the people in your life. Additionally, keep a record of blocked users and email it once a month to your family and friends outside of Facebook. Ask your friends to review the names and tell you if they approved anyone you blocked.
Make Changes to Prevent Stalking
Your account setup and interactions with others can make you an easy target. To help prevent a stalker from gaining access to your account, log out of it when you're not using it and regularly change your password. As someone close to you might be stalking you, log out on both public and home computers. Remove personal information from public posts and comments, or set up your profile Timeline with privacy settings that restrict who can see your posts. As stalkers want you to interact with them, block and report anyone who makes you feel uncomfortable instead of creating a dialog. Additionally, follow the privacy and protection guidelines on Facebook's Safety Center page (see links in Resources). If all else fails, or you believe your life is at risk, contact your local police.