The social network Facebook not only has consolidated like the more powerful social platform of history, but also that, thanks to the vision of business of its creators, consolidates like the most powerful platform of businesses of the present moment. Everything an example exceeds how to take the underlying opportunities at the crisis that as all the models of businesses have its side B. Is necessary that the committed errors are known in order to take advantage of their lessons in the future. The creator of the social network, Mark Zuckerberg made great decisions that took to the social network to transform itself into which is today, nevertheless, everything was not successes we see the great errors of Facebook Was during the exercise the 2007 when social network Beacon lance, tool that allows the purchases online and that was not any successful due to the lack of privacy, an initiative that finally finished disappearing 2009 the past. Security and privacy, this one continues being a great challenge of the social network, but it was in 2006 when published photos served as departure point the new policy of privacy due to photos of a relative of president Bush in a celebration. The same year of the disappearance of Beacon, a flight coming from the source code of the social network caused that this one was published online, untying the terror between the users until the social network informed that the flight did not concentrate more than in the operation of the interface. 2009 also were an exercise shaken for the creators and users of the social network, these last ones had the sensation that the social network tried to take control of the information of personal character of the users, which caused a great commotion and the correction of the information on the part of Facebook. In the same year, Facebook redesign two sections of home, which brought about the rejection of more than 2 million users. A brief computer science error allowed the users to accede to deprived conversations of other users and although the social network solved the incident soon, this it was a point of flexion for Facebook regarding the privacy that not yet has been managed to cover in his totality. Finally, an error that directly affected the reputation of its creator, was the one that was caused after an interview granted to the means in whom the inherent aspects to the security and the privacy of the users obtained confused answers and nothing convincing on the part of creator and CEO, Mark Zuckerberg, although the trajectory of the social network and more and more increasing his, importance in the world of the businesses and the use, left this incident only for the memory. More than a story of errors, this one tries to be a information to consider in the elaboration of any plan of company destined to the beginning of a business online, considering the errors of the past is solely that they are possible to be avoided in the future, especially when the future comes from dynamic and vertiginous the technology where it is here and now in itself.