I got a message regarding that too, and I just have cheapo Nokia devices. I found it very confusing trying to use the opt-out link... it takes you to a page wi

I got a message regarding that too, and I just have cheapo Nokia devices. I found it very confusing trying to use the opt-out link... it takes you to a page with a map asking you to opt-in or "no thanks", and if you click the latter, it takes you to documentation explaining how the find-the-device scheme is supposed to work, but does not clearly indicate if you're opted out or with an obvious button labelled something "opt-out" related. I turned the feature off on my device, but somewhere there's probably the ghost of my old dead phones now trying desperately to call home.