Abstract
The article intends to show the importance of a brand defense strategy in search of corporate image reputation through attacks and critiques of products, services and brands in social networks. For that, the analysis of the fan page airline company will be carried out. Three periods were analyzed, covering the months of November and December of the years 2010 and 2012. The study evaluates the communication and marketing components with the strategic public of the organization in order to defend the image in the face of comments and criticisms that may expose products and services.