Chat request from hot sexy
Check with your mutual friends to see if they know them.
If you're a guy and you get a random friend request from a beautiful woman, then this is your first tip-off that it might be a ruse. A friend request with a picture of an attractive person posing in a provocative way is often the bait used by those creating fake friend requests.
This information may include your contact information (for spamming), or other personal information that might be useful in setting you up for a phishing attack.
You may also get requests from attackers that post malicious links to malware or phishing sites which may end up in your Facebook newsfeed after you accept their friend request.
If you can't recall ever meeting this person in real life or meeting through any mutual friends, then it is likely a friend request sent to you under false pretenses.
Check their friend's list (if it's viewable) and click the "mutual" list to see whom you both know.
Fake profiles are often created hastily and most profiles will indicate when the person joined Facebook.