Because of Facebook’s massive and committed user base, scammers and cybercriminals are heavily targeting this social network these days. Facebook has recently implemented few security and safety measures to protect its users from frauds, phishing, and malware attack.
Recently Facebook has integrated WOT (Web Of Trust) – a community-powered reputation ratings tool to its platform. Each link shared on Facebook will be reviewed by WOT and warn if the link is spam or contains some sort of Malware.
On the other hand, Clickjacking is another Facebook security issue. Certain malicious websites contain code that can make your browser take action without your knowledge or consent. For example, clicking on a link on malicious site might cause the website to be posted to your Facebook profile. Don’t click on strange links, even if they’re from friends.
For an added security, Facebook has also implemented the Two-factor authentication system, which requires entering a code that you received as SMS. Every time you logon to Facebook from a new computer or devices you may need to enter this code.
You can get more details about Facebook security from this Facebook Security Page.