If you see a message on Facebook claiming to link to naked photos of Emma Watson, or a gruesome video of a spider trapped under someones skin, you should instantly be suspicious. You should think twice before you click on the link even if the message has been posted on Facebook by one of your friends. If you make the mistake of granting the rogue app permission to access your Facebook profile and post on your timeline using your name, it will have been posted under your name. In this way, scams can spread very quickly across Facebook.”]
Source: https://grahamcluley.com/naked-emma-watson-spiders-under-skin-video-facebook/