Uber got in Big Trouble for this a while back[0]. Basically, device fingerprinting[1]. It seems like it's sort of OK now? [0] https://the-parallax.com/2017/04/

Uber got in Big Trouble for this a while back[0]. Basically, device fingerprinting[1]. It seems like it's sort of OK now? [0] https://the-parallax.com/2017/04/26/uber-device-fingerprinting/ https://the-parallax.com/2017/04/26/uber-device-fingerprinti... [1] https://nshipster.com/device-identifiers/ https://nshipster.com/device-identifiers/