The purpose of this communication is to highlight the singularities that permeate the ethical and legal dimensions of the use of information, revealing some disagreements between both in order to contribute to a critical view of the use of information. The study reveals how ethical and legal dimensions are practically treated as synonyms, and takes as an example some dilemmas concerning copyright and privacy in digital networks to demonstrate how the ethical issue cannot be reduced to the legal issue. The conclusion of the research is that the moral judgment that permeates new cultural practices tends to be consolidated before the regulation of the legal system, and that, therefore, the ethical use of the information will not always be in agreement with its legal use.