With the increasing use of smartphones for banking, shopping, social media, and work, ensuring your device is secure has never been more critical. Cyber threats such as phishing attacks, malware, and data breaches continue to evolve, making it essential to stay ahead with strong security settings and best practices.
In this guide, we’ll explore practical steps to improve smartphone security settings in 2025 to keep your data and privacy protected.
1. Enable Biometric Authentication
Modern smartphones offer biometric security options like:
- Fingerprint scanning (most secure and fast)
- Face recognition (secure on flagship devices with 3D scanning)
- Iris scanning (available on select models)
How to enable biometric authentication:
- iOS: Go to Settings > Face ID & Passcode
- Android: Navigate to Settings > Security & Biometrics
This adds an extra layer of protection, ensuring that even if someone steals your password, they cannot access your device.
2. Use a Strong Passcode & Two-Factor Authentication (2FA)
A strong alphanumeric passcode is harder to crack than a simple 4-digit PIN.
- Avoid birthdays, simple patterns, or repeated numbers.
- Use a combination of letters, numbers, and special characters.
Additionally, enable two-factor authentication (2FA) for services like:
- Google & Apple accounts
- Social media (Facebook, Instagram, Twitter/X)
- Online banking & payment apps
2FA requires a secondary verification step, preventing unauthorized access even if your password is stolen.
3. Keep Your Software & Apps Updated
Regular updates patch security vulnerabilities that hackers can exploit.
- Enable automatic updates for both system and apps.
- Avoid downloading apps from third-party stores – only use Google Play Store or Apple App Store.
Hackers often target outdated software, so staying up to date is a simple but crucial security measure.
4. Manage App Permissions Carefully
Many apps request unnecessary permissions, potentially exposing your data.
- Review app permissions in Settings > Apps & Notifications.
- Revoke access to camera, microphone, location, and contacts for apps that don’t need them.
- Use “Ask Every Time” settings for sensitive permissions.
This prevents apps from secretly collecting personal data.
5. Enable Find My Device & Remote Wipe
Losing your phone can be a security nightmare, but built-in tracking features can help.
- Apple: Use Find My iPhone to track, lock, or erase your device remotely.
- Android: Enable Find My Device from Google’s security settings.
If your phone is stolen, remote wipe ensures no one can access your sensitive data.
6. Use a VPN on Public Wi-Fi
Public Wi-Fi networks (cafes, airports, hotels) are easy targets for hackers using man-in-the-middle (MITM) attacks.
- Use a trusted VPN to encrypt your internet traffic.
- Avoid banking or entering passwords on public Wi-Fi without a VPN.
A VPN hides your online activities, making it harder for hackers to intercept data.
7. Install a Trusted Mobile Security App
Consider installing a reliable mobile security app that offers:
- Real-time malware scanning
- Anti-theft & remote wipe features
- Phishing protection & safe browsing tools
Some top mobile security apps include:
- Bitdefender Mobile Security
- Norton Mobile Security
- Kaspersky Mobile Antivirus
8. Disable Bluetooth & NFC When Not in Use
Hackers can exploit Bluetooth & NFC vulnerabilities to access your phone.
- Turn off Bluetooth & NFC when you’re not using them.
- Disable auto-pairing for Bluetooth devices.
This simple step prevents unwanted connections from malicious actors.
9. Secure Your Lock Screen Notifications
Lock screen notifications can expose sensitive information like SMS codes or emails.
- iOS: Go to Settings > Notifications > Show Previews > When Unlocked
- Android: Navigate to Settings > Lock Screen > Hide Sensitive Notifications
This ensures private information stays hidden when your phone is locked.
10. Backup Your Data Regularly
Ransomware attacks and accidental data loss can happen anytime.
- Use cloud backups (Google Drive, iCloud)
- Backup to an encrypted external drive for extra security
- Enable automatic daily or weekly backups
This way, even if your phone is lost, damaged, or hacked, your important data is safe.
Final Thoughts
Securing your smartphone in 2025 requires a combination of strong passwords, updated software, careful app permissions, and proactive security habits. By following these best practices, you can protect your personal data from cyber threats and enjoy a safer digital experience.