Learn how to protect your privacy by understanding the limitations of airplane mode, removing the SIM card, and not connecting to Wi-Fi. Discover the key settings to focus on and how cell tower communication can still track your location. Explore methods of phone connectivity to cell towers without a SIM card and the privacy implications of GPS. Find out how smartphones leak location and get tips on protecting your privacy.
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Quick takeaways
To completely stop communication with cell towers and prevent location tracking, airplane mode is the only effective method.
Disabling location services, which may require turning off GPS, can prevent location tracking through GPS and related technologies.
Deep dives
Cell Towers and Location Tracking
Cell towers are constantly scanning for nearby signals from phones, allowing cell providers to track the location of devices. Even without a SIM card, phones can still connect to cell towers for emergency calls or GPS assistance. Various services like TimeSync also rely on cell tower communication. While limited compared to phones with active SIM cards, these interactions can still be detectable. To completely stop communication with cell towers, airplane mode is the only effective method.
GPS and Location Services
GPS receivers in phones pick up signals from satellites to determine precise locations. Although GPS doesn't send location data to satellites, phones store this data and can share it with apps and services. Disabling location services, which may require turning off GPS, can prevent location tracking through GPS and related technologies. Users should review app permissions and revoke any location permissions they are uncomfortable with.
WiFi and Location Tracking
WiFi signals can also be used for location tracking, even if a phone is not connected to a network. WiFi signals from nearby networks can help estimate a phone's location through processes like AGNSS and triangulation. Phones also broadcast the names of remembered WiFi networks, acting as a unique identifier. Turning off WiFi when not in use, in addition to airplane mode, is recommended to avoid WiFi-enabled location tracking.
Our phones are complex devices that leak our location in countless ways.
We explain 3 essential settings for protecting your location data: - Airplane Mode - Location Services - WiFi
We dive into how they work and try to demystify location tracking, hopefully leaving you with a better understanding of how to use these tools in your privacy toolbox.
00:00 Do you know how to stop location tracking? 02:28 Airplane Mode 07:58 Location Services 09:54 WiFi 12:10 Summary 12:39 BLE and Faraday Bags 13:10 Don't throw out your devices
Our phone can be both an ally and inadvertent foe in the modern digital landscape. There are many other settings you can toggle, depending on your apps and operating system, to help decrease how much location data you reveal, and we'll go through these in another video. This can all go a long way to helping you fortify your digital life.
Brought to you by NBTV team members: GrapheneOS, Reuben Yap, Lee Rennie, Cube Boy, Sam Ettaro, Will Sandoval and Naomi Brockwell