Walking and driving without a mobile device on your person is sufficiently unusual that it's a form of metadata in itself. Look at the Kohberger case - they're

Walking and driving without a mobile device on your person is sufficiently unusual that it's a form of metadata in itself. Look at the Kohberger case - they're using the fact he turned his phone off as evidence. In fact, this kind of pattern was even used by the Obama administration while targeting humans in the Middle East for extrajudicial killings. It's even more precise when coupled with traffic analysis: if every Tuesday, an IMEI disappears from the network shortly before another IMEI comes online, then those two devices are likely related. In your scenario, the phone disappearing from the network could be coupled with your car showing up on a traffic camera leaving your house. Ironically, you draw attention to yourself by _not_ advertising your metadata. At a certain point, the world is full of so much metadata that you really can't control your own. Want to turn off location services? Make sure you turn off WiFi too, because a list of nearby access points and SSIDs is enough to pinpoint you down to a few meters. Want to spoof your location when using an app with network services permission? You'll need to spoof nearby access points and their transmission power to match them to somewhere in the real world. And you better make sure to do it inside a Faraday cage. Because no matter how careful you are, if someone else is walking by your clever hacking nest, and they do have location services enabled, then their phone will be able to pair their geolocation with your unique access point topology. Oh, and even with the Faraday cage, the fact your phone is seeing access points that no other phone has seen is a unique data point in itself. Point is, you can be compromised without any action on your own part. Traffic analysis is hard to defeat, but you can mitigate against it by not committing crimes that motivate the government to spend resources on tracking you across disparate systems like mobile networks and traffic cameras. Or if you must commit those crimes, then you'll need to make sure everything you do is in the fattest part of the bell curve for every possible statistical test the government can use to analyze common behaviors.