From the consolidation of the application of European data protection regulations and the recent adoption of Brazilian data protection regulations, we are faced with a scenario that crosses borders. In a world marked by companies whose business model is the analysis and commercialization of personal data and of governments that use their citizens' data for control and surveillance, it is imperative to discuss the necessary characteristics to foster a society that respects ethical and legal values regarding data privacy and consented uses there; the authors address concepts and cases that they consider important for the establishment of reflections on the use of web data. They also take into account ethical issues and regulatory instruments in Europe and Brazil, analyzing the strongness and weaknesses in the implementation of data protection and privacy.