Protecting data on a mobile device starts with enabling a strong screen lock using a PIN, password, or biometric authentication such as fingerprint or facial recognition. Keep your operating system and apps updated to patch security vulnerabilities, and install apps only from trusted sources like the Google Play Store or Apple App Store.
Moreover, the user has to enable device encryption, activate Find My Device, and back up the information on a regular basis. Use powerful passwords for significant accounts and apply two-factor authentication for every sensitive transaction that is available.
Furthermore, do not connect to public Wi-Fi that is not secure or doubtful. Pay attention to phishing links and messages and make sure to check apps’ permissions as well as remove the ones that are not relevant.