1. Security and privacy concerns regard to Facebook and its applications COMS E6125 Web-enHanced Information Management (WHIM) Spring 2008 by Szu-Jui Wu sw2423

2. Privacy concerns are due to Inappropriate features provided by Facebook Users disclose too much information or are unaware of risks The anonymous information itself could still provide useful data

3. Concerns of FB’s behavior Facebook Beacon Not analyzing user database But real social network, i.e. word-of-mouth Opt-in or Opt-out

4. Concerns of FB’s behavior Transfer story to FB user profile, if you Logged-in Not logged-in, but checked “remember me” box Still privacy concerns Even if you did not log-in, or check “remember me”, the activity is still transferred to FB.

5. Concerns of Users’ behaviors Users are not aware of what Facebook has done Users are willing to provide their information

6. Anonymous dataset could still provide some useful data Combined with a public dataset that can de- anonymize users with not too low probability e.g. anonymous Netflix-released movie ratings and non-anonymous IMDb users

7. Conclusion FB continues launching unprecedented apps Users need to be aware of every detail of what FB has done Nothing is impossible! Take care of your own information