Doing security checks

Access based on context

A mobile phone is tilted, putting it in to sleep mode.


Controlling access to data based on what someone is currently doing. Devices could guess what a person is doing using sensors like gyroscopes, accelerometers or GPS. For example, a phone could automatically lock when it senses it’s on a table.


  • Remains convenient while offering some form of security


  • Matching sensor data to actual activity can be error prone