Not all mobile apps, but your mobile phone is your own personal surveillance device. So when mobiles first came out they didnt have any background noise cancell

Not all mobile apps, but your mobile phone is your own personal surveillance device. So when mobiles first came out they didnt have any background noise cancelling algo's so if someone's phone "accidentally" called the last person whilst it was in their pocket, you could listen into everything they were discussing and identify the other people they were talking to. The Edward Snowden leaks, showed the phone's can be remotely activated if switched off, a bit like the Intel Management Engine is for PC's, so to defeat that you need a phone you can take the battery out of. If you want to analyse it in greater detail, do a replay attack on the transmission from your phone, like you can with wifi and then pick apart the data that is being transmitted. You might have to write your own software and get a suitable SDR dongle to listen in to a smart phone, but its doable. About a decade ago, you could get apps for android which allowed your phone to override the cell traffic management, in other words you could make you phone use a particular cell mast when there was a choice, as this can also be used for triangulation purposes, it offered a level of privacy by ignoring the other masts so triangulation couldnt take place. The smart thing to do is roll your own OS for your devices, you can even use wifi to identify whether someone is carrying a gun or knife on their person because different alloys react differently to RF signals like wifi, so you could have one of the new Garmin Fenix 7 Super Sapphire's with your own OS working with a smart phone on you that is also running your own OS scanning for metals. Anybody doing a concealed carry near you gets found out. Hacking firmware like the OnePlus 8 Camera which see's through plastic also removes privacy for people, because nylon is plastic and plastics are being used more and more in clothes, like winter Fleece jackets. https://twitter.com/MaxWinebach/status/1260564386546094081 https://twitter.com/MaxWinebach/status/1260564386546094081 https://twitter.com/BenGeskin/status/1260607594395250690 https://twitter.com/BenGeskin/status/1260607594395250690 Science is stealing everyone's privacy and I stopped carrying a mobile years ago!