Purpose The purpose of this paper is to inform or alert readers to the extensive use and ready availability of genetic information that poses varying degrees of social and legal danger. The eugenics movement of the 1920s and the general acceptance of genetic essentialism provide context for considering contemporary examples of the problem. Design/methodology/approach This paper takes an argumentative approach, supporting proposals with ideas from historical and current research literature. Findings The limits of data protection, extensive use of direct-to-consumer genetic (...) testing and use of genetic information in white nationalist circles portend a resurgence of eugenic beliefs from a century ago. Social implications Research-based recommendations may help to avoid extreme consequences by encouraging people to make informed decisions about the use of genetic information. Originality/value The paper counterposes contemporary understanding of genetic testing and data accessibility with the much older ideology of eugenics, leading to concerns about how white nationalists might further their aims with 21st century technology. (shrink)