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I don't see how this system can track a modern iOS device given Apple's deprecation of IDFA. Likewise, the Wifi MAC address on iOS is randomized by default. The
by pnw 2y ago
I don't see how this system can track a modern iOS device given Apple's deprecation of IDFA. Likewise, the Wifi MAC address on iOS is randomized by default. The only non-randomized identifier is Bluetooth AFAIK.
What am I missing?
- WhyNotHugo 2y agoLast year I downloaded a payment app (Alipay) which required me to sign up. My phone number was pre-filled in the registration screen. Clearly iOS was providing the app with some API to query my current phone number, and was disclosing it without my explicit consent.
- mu53 2y agoBrowser fingerprinting is insanely sophisticated, and I am sure that apps have sophisticated techniques as well. When you pool the data together, it’s easy to correlate. Plus, IMEI numbers can be used by carriers, and that is a very solid identifier per phone. When you operate at that level, tracking is very easy. ATT has been selling this data for years
- advisedwang 2y agoA few possible sources: - malware on phones (even though apps are supposed to only get anonymous information, there are ways to workaround it. For one a app can just ask your name and many people will put it in.) - cell phone companies selling the data (see for evidence they do this https://www.vice.com/en/article/i-gave-a-bounty-hunter-300-dollars-located-phone-microbilt-zumigo-tmobile/ https://www.vice.com/en/article/i-gave-a-bounty-hunter-300-d...) Bear in mind these companies advertising a capability doesn't mean it works on every target.