I can understand why many people are cautious about FB....I've come across A LOT of inappropriate material as well, and at times I've thought about deactivating my account. I've decided to stay with it though, because it has been the best way to keep in touch with so many friends all over the country and other parts of the world as well. I think one of the major sources of viruses are the different apps and quizzes that people are always passing along. I haven't had any problems yet, however, a couple of my friends have had viruses.