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Think Bluetooth is just for headphones and car calls?
Think again. It’s one of the sneakiest ways apps track you, and most people have no clue it’s happening.

Even when GPS is off, your phone is constantly “sniffing” for nearby devices like AirTags, smartwatches and fitness trackers. That’s normal.

Here’s where it gets shady: Some apps piggyback on that signal to figure out where you are, how long you stay and who else is around. I’m talking about fitness apps, shopping apps, airline apps, even flashlights and wallpaper apps. (Yep.)

Retail stores can use this data to detect when you walk by or how long you linger near a display. Creepy and totally preventable.

🔧 Take back control
Plenty of popular apps request Bluetooth access, not to connect to a device but to build a profile of where you go and who you’re near. The good news? You can shut it down in seconds.

▶️ On iPhone:

Go to Settings, tap Privacy & Security.

Select Bluetooth.

Look through the list. If an app doesn’t need Bluetooth (think: Uber, Target, games), toggle it off.

▶️ On Android:

Go to Settings.

Select Apps (or Apps & notifications).

Tap See all apps (or the three-dot icon for Permission manager).

Choose an app and tap Permissions.

Check if it has Nearby Devices or Bluetooth access. If it doesn’t need it, hit Deny.


🤯 Why this matters
This has nothing to do with pairing your earbuds. It’s about passive location tracking done without GPS and often without your knowledge.

Even if an app isn’t malicious, this level of data collection adds up. It fuels ad targeting, influences your search results and even shows up in the prices you’re shown online.

If you’re not actively using Bluetooth with an app, it doesn’t need access. You’ll still get your texts, music and podcasts, just without handing out a digital breadcrumb trail.

🔵 Fun facts
Bluetooth is named after a 10th-century Viking king, Harald “Bluetooth” Gormsson, who was known for uniting Denmark and Norway just like Bluetooth tech unites different devices.

King Harald had a dead tooth that looked blue, hence the nickname. When engineers were developing a short-range wireless standard in the ’90s, they used “Bluetooth” as a code name, and it stuck.

Find your mouse pointer on Mac:
If the cursor keeps disappearing, go to System Settings > Accessibility > Display > Pointer. Drag the Pointer size slider to make it larger, and pick new colors for the outline or fill. Bonus: Turn on Shake mouse pointer to locate. Next time you lose it, a quick shake makes the pointer balloon for a second. Amazing.

Add a signature in Gmail:
Go to Settings > See all settings > General > Signature. Click Create new, give it a name and type in details like your contact info and job title. You can also insert an image of your real signature. Then choose whether it appears on new emails, replies or both. Scroll down and hit Save Changes.

WhatsApp’s new Writing Help: Rewrite your messages in different styles to make them sound more professional, funny (think Kim jokes) or supportive. To try it: Tap the icon on the right of the text, then the pencil icon under your message and select the tone you want.

🛠️ Troubleshooting on Windows 11: Running into issues like no sound, no internet or a printer that won’t connect? Go to Settings > System > Troubleshoot > Other troubleshooters. You’ll see options like Audio, Network & Internet, Printer and more. Click Run next to the one giving you problems, then follow the prompts to diagnose and fix it.

🚗 Play music in older cars: If your ride doesn’t have Android Auto or CarPlay, load your favorite songs onto a USB flash drive. Plug it into your car’s radio, and as long as they’re MP3 or AAC formats, it’ll play right away. No USB port? Grab an adapter that plugs into the cigarette lighter instead.

⚠️ Don’t trust every Play Store app: Harmful ones sometimes sneak past Google’s checks, and one wrong download can infect your phone. Protect yourself: Open the Play Store app, tap your Profile, go to Play Protect > Settings > General, and toggle on Scan apps with Play Protect. It’ll inspect your apps and warn you about risks.

Check your Facebook settings:
The sinister mobile app has quietly turned on two settings that let Meta scan your phone’s entire camera roll. Nice. That means Facebook can look at your photos, even the ones you haven’t uploaded. Go to Settings & Privacy > Settings > Camera roll sharing suggestions > and Toggle off Custom sharing suggestions from your camera roll and Get camera roll suggestions when you’re browsing Facebook. PSA: Your steps may vary, but these work for most.