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Augmented reality (AR) and virtual reality (VR) devices are emerging as prominent contenders to today’s personal computers. As personal devices, users will use AR and VR to store and access their sensitive data and thus will need secure and usable ways to authenticate. In this paper, we evaluate the state-of-the-art of authentication mechanisms for AR/VR devices by systematizing research efforts and practical deployments. By studying users’ experiences with authentication on AR and VR, we gain insight into the important properties needed for authentication on these devices. We then use these properties to perform a comprehensive evaluation of AR/VR authentication mechanisms both proposed in literature and used in practice. In all, we synthesize a coherent picture of the current state of authentication mechanisms for AR/VR devices. We draw on our findings to provide concrete research directions and …