In this article, we analyze how the Brazilian Act for the Protection of Personal Data --- Lei Geral de Proteção de Dados Pessoais (LGPD) in Portuguese --- can contribute to handling some situations involving post-mortem digital legacy. For that purpose, we investigate some aspects of this act that can concur with the development of software and internet applications that cope with users’ digital assets. We analyzed the role of LGPD in the Brazilian legal system. The research was carried out based on a literature review and on the analysis of the relevant legislation and some bills proposed to regulate the matter. In line with the national constitutional order, the results point to the possibility of applying the principles and foundations of the data protection act as an axiological matrix for the treatment of the existing digital legacy.