To avoid serious problems, it would be better not to respond to messages from strangers or invitations to anonymous groups, but always look at their profile! In fact, "fake" or "false" does not have content in the profile, so it will be easier to avoid being deceived by these people. Another way is to ask someone bigger who can help us or avoid sending personal pictures to nobody especially to strangers rather than just taking them. He also talked about the problems that may happen if we publish some photos or videos of a class mate on the internet we must as them befor posting it, to avoid problems than can be very serious. We discussed the crimes committed by minors. Many guys think they can do what they want because they can not be punished, but the postal police have told us that there is a law so that all teenagers who have a crime will have a punishment when they are 18 years old. Finally, we asked questions about what was presented to us, some people did not have time to formulate questions because of the lack of time so they created a page on Google Drive where we all had the opportunity to write questions. I liked to study and create this site  because it can be very useful to everyone to discover problems that happen in the world so everyone can prevent when it will happen in the future.