Spot a fake security warning
Real phone makers and app companies never announce a virus with a flashing pop-up that demands you act in the next five minutes. If you see one:
- Close the tab or app — don't tap the buttons in the warning
- Never call a phone number shown in a pop-up
- Clear the browser's recent history if it keeps reappearing
- Run a scan from your phone's built-in security settings instead
Keep your phone updated
Most real-world phone compromises exploit problems that were fixed months earlier. Turn on automatic updates for your system and your apps, and restart your phone about once a week so updates finish installing.
Review app permissions
Every few months, open Settings > Privacy > Permission manager and look at which apps can see your location, contacts, camera, and microphone. A flashlight app does not need your contacts. Remove anything that doesn't make sense.
Use a screen lock and backups
A PIN or fingerprint lock plus automatic backups to your account means a lost or stolen phone is an inconvenience, not a disaster. Check that backups are on under Settings > System > Backup.
Protect your accounts
Turn on two-step verification for your email and banking apps, and use a different password for each important account. Your email account is the master key — if someone gets into it, they can reset everything else.
Be careful on public Wi-Fi
Free café and airport Wi-Fi is fine for reading the news, but avoid banking or shopping on it. If you must, wait until you're on your mobile data connection instead.