Privacy Tips for Travelling with an Android Phone

I've travelled to a dozen countries with an Android phone in my pocket, and I've learned the hard way that "vacation mode" for your brain shouldn't mean "vacation mode" for your privacy settings. One time in a small airport in Greece, I realized my phone had been broadcasting my precise location to every app on my device while I was connected to an unsecured airport Wi-Fi. It’s a weird feeling to realize how much data you’re leaking when you’re just trying to find a hotel. Traveling changes your threat model; you're not just worried about Google, you're worried about local sniffs and physical theft too.

Before you leave

The work starts before you even zip your suitcase. First, I always do a quick "app audit." We all have those apps we haven't opened in six months. If I don't need it for the trip, I delete it. Every app you keep is another potential door for data to leak through. This is also when you should update your phone to the latest security patch. On my Samsung, I go to Settings > Software update > Download and install. If there's an update, take it. Vulnerabilities that are patched at home might be exploited on the road.

Download your maps for offline use. Open Google Maps, tap your profile icon, and hit Offline maps. Select your destination and download it. This lets you turn off your cellular data or even put your phone in Airplane Mode while still being able to navigate. It’s a great way to limit how much "live" data you're pinging back to servers while you're moving between cities.

Crossing borders

Border crossings are a unique privacy challenge. In many countries, border agents have the legal right to ask you to unlock your phone. While I've never had this happen to me personally, it's a real possibility. On Android, there is a feature called "Lockdown Mode." When you enable it, it turns off fingerprint and face unlock, meaning the only way into the phone is your PIN or password.

To enable this on a Pixel or Samsung, you usually go to Settings > Display > Lock screen (or "Secure lock settings") and toggle on Show lockdown option. Then, when you hold the power button, you'll see a "Lockdown" icon. Tap it right before you hit the customs line. It won't stop a determined government from getting in eventually, but it prevents a quick cursory glance without your explicit PIN entry.

Public Wi-Fi habits

Free Wi-Fi is the biggest trap. It's tempting when you're trying to save on roaming data, but "Guest_WiFi_123" is often a honeypot. If you must use public Wi-Fi, you need a VPN. I’m not talking about some "free" VPN from the Play Store—those often sell your data anyway. Use a reputable one like Mullvad or ProtonVPN. It essentially creates a tunnel for your data so that anyone else on that airport Wi-Fi can't see what you're doing.

Another trick I use: disable "Connect to public networks automatically" in your Wi-Fi settings. On Android 14, go to Settings > Network & internet > Internet > Network preferences. Turn off Notify for public networks and Connect to public networks. It stops your phone from hunting for and joining open hotspots without you knowing.

Location strategy on the road

When I'm traveling, I'm much more aggressive with location permissions. I'll switch almost every app to "Ask every time" rather than "While using the app." It’s annoying to get those pop-ups when you just want to find a nearby taco stand, but it forces you to realize how often apps check your coordinates.

Go to Settings > Privacy > Permission manager > Location. You’ll probably be shocked at how many apps have "Always" or "While in use" access. If you're using a Samsung with One UI 6, you can also use the "Privacy Dashboard" to see exactly which apps checked your location in the last 24 hours. A realistic example: I once found a simple "Currency Converter" app that had pinged my location 42 times in a single day. Why? To show me "relevant ads." I deleted it immediately and used Google’s web-based converter instead.

Encrypted backup before travel

If your phone gets stolen in a foreign city, the data loss is often worse than the hardware loss. Before I leave, I run a full backup to Google One, but I make sure "Backup encryption" is on. This uses your screen lock (PIN/Pattern) to encrypt the data.

On your phone, go to Settings > Google > Backup. Make sure Backup by Google One is toggled on. If you have a screen lock set up, your backup is already being encrypted with that key. This is vital because if someone steals your phone and tries to access your cloud backups, they can’t get your messages or photos without your actual PIN. I also recommend taking a physical note of your 2FA recovery codes and keeping them in your passport or a separate bag. If you lose your phone, you lose your 2FA app, which can lock you out of everything.

After you return

Once I'm back home and on my own secure Wi-Fi, I do a "digital scrub." I delete the travel apps (airline apps, local transit apps, hotel loyalty apps) that I won't use again for a year. I also go back into my Google account settings and clear my "Location History" for the duration of the trip. I don't need a permanent record of every street corner I turned in Rome sitting on a server forever.

One small caveat: clearing your location history after the trip can sometimes mess with your "Google Photos" memories if you like seeing your pictures on a map. You have to decide if the "Map View" in your gallery is worth the data trail. Personally, I prefer a clean slate. I also change my PIN after a long trip if I've been typing it in frequently in crowded places where someone might have been "shoulder surfing." It only takes 30 seconds and adds a nice layer of closure to the trip.