In using Facebook to keep in touch with family and friends, there are constant daily attacks. Many of these are socially engineered well and can trick people who are not aware or careful. In many cases, there are offers for capabilities that do not exist in Facebook (e.g., to see who checked your profile). Please be careful and do not click on any suspicious links offered.
Often I will hover over any unacceptable post and delete it from my Facebook wall (so that my contacts don’t become infected). Accepting malicious links can infect your PC plus compromise your Facebook profile settings.
Facebook – Avoid the Discover-your-stalker fake attacks