They are all after you: investigating the viability of a threat model that involves multiple shoulder surfers.

Mohamed Khamis Linda Bandelow Stina Schick Dario Casadevall Andreas Bulling Florian Alt They are all after you: investigating the viability of a threat model that involves multiple shoulder surfers. 31-35 2017 MUM https://doi.org/10.1145/3152832.3152851 conf/mum/2017 db/conf/mum/mum2017.html#KhamisBSCBA17