this post was submitted on 02 Sep 2023
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TIL about Bluetooth beacons. I assumed people were tracked, but I didn’t consider it was via Bluetooth.
Bluetooth personal networks have been a thing for about a decade and are used for monitoring traffic density and flow by third party companies. It's partly why Apple was removing their aux ports and pushing for Bluetooth so much, they are making money with tracking their statistically significant user base. Google does it too and it's most readily evident with Maps traffic filter.
If you've wondered why enabling Bluetooth asked for iPhone location to be enabled, now you know.
What the fuck
Just wait until you hear about how AirTags work:
That's how it's expected to work, yes. As does Samsung SmartTags, and Tiles. These tracking devices (that we purchase and opt-in for) are a net positive in most cases. How else would we expect them to work if not for Bluetooth beacons (and UWB)?
When you buy a new iPhone, is the location tracking "Find My" feature enabled by default, or do you need to turn it off if you don't want your phone to upload other people's location data to Apple while draining your battery?
Yes, it is turned on by default. You can opt-out if you'd like. Here's a pretty good article that covers it all: https://www.howtogeek.com/725842/what-is-apples-find-my-network/
Samsung SmartTags "Find" network is opt-in, which stagnated the growth of their network.
Tile's network is naturally opt-in as it requires us to install the app, and therefore has the lowest coverage from my understanding.
I recall seeing the following approximate numbers:
Battery and data usage are negligible.
Bluetooth has been around a lot longer than that. Since 1989.
You're right that Bluetooth has been around since 89 but the idea of a personal area network that tracks the movements of a user is a relatively fresh idea. In fact third party data resellers that track you didn't really exist until after 2006. It's unique to cell phone data being recognized as basically an analog for an individual, which shows all kinds of data. Did a display catch someone's attention? We'll know because of a longer than usual time in front of the display. That display now has an impact rating - not to see how durable it is to dropping but how much attention, how long, and how likely it is to attract attention.
Want to know something even crazier? That duration of stay can be paired to your phone's metadata and compared to other interests that phone has seen on social media and web pages (via cookies). So now that display can have personality types and interests linked to it. They will know the types of person who will be attracted and it makes the data a gold mine for advertisers.