Your Android phone is sending data to Google every 4.5 minutes.
Even when you're not touching it. Even when the screen is off.
A peer-reviewed study from Trinity College Dublin confirmed it.
12 settings to change right now:
1/ Turn Off WiFi Scanning (it tracks you even when WiFi is OFF)
You turn off WiFi. You think WiFi is off.
It's not. Android keeps scanning for WiFi networks in the background to track your location.
This is confirmed in Google's own developer documentation.
→ Settings → Location → Location Services → Wi-Fi Scanning → Turn OFF
Samsung: Settings → Location → Location Services → Improve Accuracy → Wi-Fi Scanning → Turn OFF
You turn off WiFi. You think WiFi is off.
It's not. Android keeps scanning for WiFi networks in the background to track your location.
This is confirmed in Google's own developer documentation.
→ Settings → Location → Location Services → Wi-Fi Scanning → Turn OFF
Samsung: Settings → Location → Location Services → Improve Accuracy → Wi-Fi Scanning → Turn OFF
2/ Turn Off Bluetooth Scanning (same problem)
Even when you toggle Bluetooth OFF, Android keeps scanning for Bluetooth beacons to track your location.
Samsung's own settings page says it literally:
"Connect to nearby devices even while Bluetooth is turned off."
→ Settings → Location → Location Services → Bluetooth Scanning → Turn OFF
Samsung: Settings → Location → Location Services → Improve Accuracy → Bluetooth Scanning → Turn OFF
Even when you toggle Bluetooth OFF, Android keeps scanning for Bluetooth beacons to track your location.
Samsung's own settings page says it literally:
"Connect to nearby devices even while Bluetooth is turned off."
→ Settings → Location → Location Services → Bluetooth Scanning → Turn OFF
Samsung: Settings → Location → Location Services → Improve Accuracy → Bluetooth Scanning → Turn OFF
3/ Delete Your Advertising ID (every app can see it - no permission needed)
Android assigns a unique advertising ID to your phone.
Unlike iPhone (which requires apps to ASK for permission), Android exposes this ID to ALL apps by default. No special permission required.
Since Android 12, you can delete it entirely:
→ Settings → Google → All Services → Privacy & Security → Ads → Delete Advertising ID
Samsung: Settings → Security & Privacy → More Privacy Settings → Ads → Delete Advertising ID
Android assigns a unique advertising ID to your phone.
Unlike iPhone (which requires apps to ASK for permission), Android exposes this ID to ALL apps by default. No special permission required.
Since Android 12, you can delete it entirely:
→ Settings → Google → All Services → Privacy & Security → Ads → Delete Advertising ID
Samsung: Settings → Security & Privacy → More Privacy Settings → Ads → Delete Advertising ID
4/ Turn Off Usage & Diagnostics
ON by default. Sends app usage data, crash reports, and device diagnostics to Google in the background.
→ Settings → Google → All Services → Privacy & Security → Usage and Diagnostics → Turn OFF
Samsung: Settings → Security and Privacy → More Security and Privacy → Usage and Diagnostics → Turn OFF
A Trinity College Dublin study found that Android sends telemetry even after you opt out of this setting, but turning it off still reduces the volume of data sent.
ON by default. Sends app usage data, crash reports, and device diagnostics to Google in the background.
→ Settings → Google → All Services → Privacy & Security → Usage and Diagnostics → Turn OFF
Samsung: Settings → Security and Privacy → More Security and Privacy → Usage and Diagnostics → Turn OFF
A Trinity College Dublin study found that Android sends telemetry even after you opt out of this setting, but turning it off still reduces the volume of data sent.
5/ Turn Off Google Location Accuracy
When this is ON, Google uses WiFi, Bluetooth, and cell towers, not just GPS, to estimate your location.
This means Google's servers are receiving data about nearby WiFi networks and cell towers from your phone.
If you only need GPS:
→ Settings → Location → Location Services → Google Location Accuracy → Turn OFF "Improve Location Accuracy"
Note: Maps and ride-sharing apps may be slightly slower to find your location indoors.
When this is ON, Google uses WiFi, Bluetooth, and cell towers, not just GPS, to estimate your location.
This means Google's servers are receiving data about nearby WiFi networks and cell towers from your phone.
If you only need GPS:
→ Settings → Location → Location Services → Google Location Accuracy → Turn OFF "Improve Location Accuracy"
Note: Maps and ride-sharing apps may be slightly slower to find your location indoors.
Tweet 7/15:
6/ Pause Web & App Activity (the master data pipeline)
This is Google's central tracking system. When ON, it records:
→ Every Google search you make
→ Every website you visit in Chrome
→ Every app you use on Google services
→ Your location at the time
All of it, linked to your Google account.
To pause:
→ Settings → Tap your profile → Manage Google Account → Data & Privacy → Web & App Activity → Turn OFF
Or visit: myaccount.google.com/activitycontro…
6/ Pause Web & App Activity (the master data pipeline)
This is Google's central tracking system. When ON, it records:
→ Every Google search you make
→ Every website you visit in Chrome
→ Every app you use on Google services
→ Your location at the time
All of it, linked to your Google account.
To pause:
→ Settings → Tap your profile → Manage Google Account → Data & Privacy → Web & App Activity → Turn OFF
Or visit: myaccount.google.com/activitycontro…
7/ Change YouTube History Auto-Delete to 3 Months
If your Google account was created after 2020, YouTube stores 3 YEARS of your watch history by default.
If your account is older, it may store your history indefinitely. No auto-delete.
Check and change:
→ YouTube app → Profile icon → Settings → Manage All History → Auto-Delete → Set to 3 months
Or: myaccount.google.com → Data & Privacy → YouTube History → Auto-Delete
If your Google account was created after 2020, YouTube stores 3 YEARS of your watch history by default.
If your account is older, it may store your history indefinitely. No auto-delete.
Check and change:
→ YouTube app → Profile icon → Settings → Manage All History → Auto-Delete → Set to 3 months
Or: myaccount.google.com → Data & Privacy → YouTube History → Auto-Delete
8/ Turn Off Personalize Using Shared Data
Google apps share data between each other to "personalize your experience."
Gmail, Contacts, Clock, and external media all feed into a shared data index that Google reads.
→ Settings → Google → All Services → Privacy & Security → Personalize Using Shared Data
→ Turn OFF each app listed
Known issue: some sources (Contacts, External Media) have been reported to re-enable themselves after ~10 days. Check back periodically.
Google apps share data between each other to "personalize your experience."
Gmail, Contacts, Clock, and external media all feed into a shared data index that Google reads.
→ Settings → Google → All Services → Privacy & Security → Personalize Using Shared Data
→ Turn OFF each app listed
Known issue: some sources (Contacts, External Media) have been reported to re-enable themselves after ~10 days. Check back periodically.
9/ Turn Off Nearby Device Scanning (Samsung users especially)
Your phone continuously scans for nearby Bluetooth devices, even when Bluetooth is off.
This uses battery, increases your device's fingerprint, and adds another layer of passive tracking.
Samsung: Settings → Connections → More Connection Settings → Nearby Device Scanning → Turn OFF
Other Android: Settings → Google → All Services → Connected Devices and Sharing → Devices
Your phone continuously scans for nearby Bluetooth devices, even when Bluetooth is off.
This uses battery, increases your device's fingerprint, and adds another layer of passive tracking.
Samsung: Settings → Connections → More Connection Settings → Nearby Device Scanning → Turn OFF
Other Android: Settings → Google → All Services → Connected Devices and Sharing → Devices
10/ Restrict Background Data for Apps You Don't Use
Android doesn't have a single "Background App Refresh" toggle like iPhone.
Instead, you control it per app:
→ Settings → Apps → [Select App] → Battery → Set to "Restricted"
This stops the app from running in the background entirely.
For a system-wide approach:
→ Settings → Network & Internet → Data Saver → Turn ON
This blocks background data for all apps. You can whitelist essential ones.
Android doesn't have a single "Background App Refresh" toggle like iPhone.
Instead, you control it per app:
→ Settings → Apps → [Select App] → Battery → Set to "Restricted"
This stops the app from running in the background entirely.
For a system-wide approach:
→ Settings → Network & Internet → Data Saver → Turn ON
This blocks background data for all apps. You can whitelist essential ones.
11/ Check What Google Already Has on You
Before you close this thread, go look at what's been collected:
→ myaccount.google.com/data-and-priva…
Scroll to "History Settings." You'll see:
→ Web & App Activity (every search, every site)
→ Location History (everywhere you've been)
→ YouTube History (everything you've watched)
Click each one. Look at the timeline. Then decide what to delete.
→ myaccount.google.com/delete-service… → Delete Activity By
Before you close this thread, go look at what's been collected:
→ myaccount.google.com/data-and-priva…
Scroll to "History Settings." You'll see:
→ Web & App Activity (every search, every site)
→ Location History (everywhere you've been)
→ YouTube History (everything you've watched)
Click each one. Look at the timeline. Then decide what to delete.
→ myaccount.google.com/delete-service… → Delete Activity By
12/ BONUS: Make Your Phone Twice as Fast (Hidden Setting)
Android has a hidden Developer Menu.
→ Settings → About Phone → Tap "Build Number" 7 times
→ Enter your PIN
→ Go back to Settings → System → Developer Options
Samsung: Settings → About Phone → Software Information → Build Number (tap 7 times)
Now scroll to "Drawing" and set these to 0.5x:
→ Window Animation Scale
→ Transition Animation Scale
→ Animator Duration Scale
Your phone will feel dramatically faster. Animations complete in half the time.
⚠️ Note: Some banking apps may not work with Developer Options enabled. You can toggle it off at the top of the Developer Options screen if needed.
Android has a hidden Developer Menu.
→ Settings → About Phone → Tap "Build Number" 7 times
→ Enter your PIN
→ Go back to Settings → System → Developer Options
Samsung: Settings → About Phone → Software Information → Build Number (tap 7 times)
Now scroll to "Drawing" and set these to 0.5x:
→ Window Animation Scale
→ Transition Animation Scale
→ Animator Duration Scale
Your phone will feel dramatically faster. Animations complete in half the time.
⚠️ Note: Some banking apps may not work with Developer Options enabled. You can toggle it off at the top of the Developer Options screen if needed.
That's 12 settings. 15 minutes.
Your Android phone just got more private, uses less battery, and feels faster.
None of this required root access. No apps to install. Just settings Google buried.
Source:
scss.tcd.ie/doug.leith/app…
Your Android phone just got more private, uses less battery, and feels faster.
None of this required root access. No apps to install. Just settings Google buried.
Source:
scss.tcd.ie/doug.leith/app…
I hope you've found this thread helpful.
Follow me @heynavtoor for more.
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