The unprecedented global public health crisis posed by the COVID- 19 pandemic has caused mass upheaval of social, educational, financial, health, and justice systems around the world. Technological and other responses at the national, regional, and international level, designed to contain the spread of COVID-19, have also significantly interrupted the way that we live, work, and interact. This article explores the implications of these response efforts, and their impact on human rights, existing inequalities, and entrenched forms of discrimination. In particular, the article explores the implications of using mass surveillance and registration measures to detect, surveil, and control populations and their movements within and across borders as part of public health responses. The use of digital health credentials in automated social sorting processes and other mass surveillance and registration measures in response to the COVID-19 pandemic sets an alarming precedent for future responses to global public health crises.