> The police could quickly see who has been close to a murder victim: simply report the victims phone as being ‘infected’. > A company could install Bluetooth

> The police could quickly see who has been close to a murder victim: simply report the victims phone as being ‘infected’. > A company could install Bluetooth beacons equipped with this software at locations of interest (e.g. shopping malls). By reporting a particular beacon as ‘infected’ all phones (that have been lured into installing a loyalty app or that somehow have the SDK of the company embedded in some of the apps they use) will report that they were in the area. I see these as possible exploits indeed. But the points are a bit confusing. I would love for the police to be able to stop a serial killer from killing more people. But they will do by exploiting a COVID-19 contact tracing app? And we will be mad at them? > Some might say this is not a bug but a feature, but the same mechanism could be used to find whistleblowers, or the sources of a journalist. It's been some time since I read Snowdens' Permanent Record, but I don't remember him getting in close contact with journalists to hand over information. > If you have Google Home at home, Google could use this mechanism to identify all people that have visited your place. That's the reality already. > Jealous partners could secretly install an app on the phone of their significant other, to allow them to monitor who they have been in contact with. Overzealous parents could use this spy on their children. Maybe drill down a bit into your relationship and figure out the core issue.