Digital ID (and other technologies with tracking and profiling capabilities) may be used by governments and partnering agencies to collect data about citizens. Among other problems, these technologies may threaten the privacy of their users. Personal informational privacy matters because it is necessary for the enjoyment of security, autonomy, and human dignity. When privacy is violated, users are exposed to data hacking and harmful state interventions, to a loss of expressive and investigative capacity, and to a loss of dignity. Privacy matters. Canadian law and public policy should protect personal privacy from the potential negative impacts of information technologies and from government overreach.