The protection of personal data and privacy are important issues closely related to use of social media, information and communication technologies, and the Internet in the area of education. The treatment of academic information and use of tools and programs for instruction, communication, and learning have revealed the handling of a significant volume of personal data from different sources. It is essential to protect this information from possible privacy violations. This descriptive study, which is of transversal nonexperimental design, focuses on how 384 pre-service teachers' enrolled in educational technology courses in their education programs view the protection of personal data. The goals are to describe and analyze how these teachers perceive the risks associated with protection of data on the Internet and what they know about protection of data in primary education. We administered a questionnaire within the framework of an educational activity that focused on digital competence in data protection in education. The results show a high perception of risk in topics such as accepting cookies when surfing the Internet or transferring banking information. The knowledge the students claim to have shown a lack of information on the protection of minors' data in issues related to the development and schooling of primary school students, as well as their health, background, and family environment. Curricular treatment of these areas that includes content, practices on regulations, and adopts a situated, critical, and responsible approach in pre-service teacher education is recommended.