The goal of mIDR (Usable Intrusion Detection & Response on Personal Mobile Devices, FCT AAC 02/SAICT/- 2017, project 30347, cofunded by COMPETE/FEDER/FNR) is to develop and evaluate passive modes of security, that can accommodate the social relationships between owners and socially-close adversaries. Unlike unlock authentication, which is an active defense against physical access, passive defenses aim to primarily provide awareness, traceability, and recovery from intrusions; and to only secondarily engage counter-measures like blocking access.