How do I protect my Android smartphone?
1. Set an access code
First, set an access code for the screen lock. A 6-digit code is safer than a 4-digit code. You could also choose a lock pattern. This isn't as safe as the digit code, since thieves can figure out your pattern from the greasy smudges. If your smartphone has a fingerprint scanner, you can use your fingerprint to unlock your phone.
2. Change your SIM card PIN code
Your SIM card comes with a PIN code by default. This is often 0000. Change this code as soon as possible. That way, you'll make sure no one will have access to your SIM card, preventing anyone from calling, texting, or using the Internet at your expense.
3. Keep updating Android and apps
Make sure your phone runs on the latest possible Android version and that your apps too are provided with the latest update. Install updates as soon as you receive a notification on your smartphone. You'll receive these notifications automatically. It could be that the latest update fixes a security leak. Of course, you'll want to have it on your smartphone as quickly as possible.
4. Turn on Android device manager
In the Google settings menu, you can turn on Android device management. With this function, you'll call, find, lock, or erase your smartphone remotely. When you've lost your phone, you can use another device to look for it. You can also trigger your ringtone at maximum volume for 5 minutes; useful when you've lost your smartphone at home. If your phone has been stolen, you can use another device to lock your smartphone at a distance or to erase all data from your device and SD card.
5. Scan your device for viruses
Regularly use an application to scan your device for viruses. That way, you'll be sure no harmful apps are working in the background. You won't need a paid app for this.
6. Only download apps from the Play Store
The apps from the official Play Store have been checked in advance, making them a lot safer than apps that aren't from the Google Play Store. Apps from the Internet that haven't been checked might contain viruses and malware. Avoid getting these on your phone by only downloading popular apps with positive reviews from the Google Play Store.