The study consisted of 5 tasks designed to exercise a specific system feature along with some survey questions. The users
had no advance notice that the study would focus on the security of Facebook Chat. We created 4 dummy Facebook
accounts for participants to use during the study to help segregate tasks and to pose no privacy risks to the users. Each
account had a friend named Steve that the participants would chat with for testing purposes. The average completion for
each user was approximately 25 minutes.