mobile privacy; protocol analysis; online tracking

Despite our growing reliance on mobile phones for a wide range of daily tasks, their operation remains largely opaque even for experts. Mobile users have little insight into how their mobile apps operate and perform in the network, into how (or whether) they protect the information that users entrust to them, and with whom they share user's personal information. A number of previous studies have addressed elements of this problem in a partial fashion, trading off analytic comprehensiveness and deployment scale.