Advertisers are increasingly turning to an invisible method that pulls together information about your device to pinpoint your identity.
If there’s one lesson to learn about digital privacy, it’s that we can never grow complacent. Even if we secure our data so we are not tracked online, the ad tech industry will find ways to monitor our digital activities.
And so it is with the rise of so-called fingerprinting, which security researchers are calling a next-generation tracking technology.
What is it exactly? Fingerprinting involves looking at the many characteristics of your mobile device or computer, like the screen resolution, operating system and model, and triangulating this information to pinpoint and follow you as you browse the web and use apps. Once enough device characteristics are known, the theory goes, the data can be assembled into a profile that helps identify you the way a fingerprint would.
https://www.nytimes.com/2019/07/03/technology/personaltech/fingerprinting-track-devices-what-to-do.html