How to Improve Your Phone's Security Score: A Complete 2026 Guide

Your phone knows more about you than almost any other device you own. It stores your messages, tracks your location, holds your banking apps, and stays connected to your email around the clock. That is exactly why attackers target mobile devices so aggressively—and why a strong phone security score matters more every year.

This guide walks you through practical, actionable steps to improve your phone's security score, whether you use iOS or Android. You'll learn what a security score actually measures, which settings to change first, and how to build habits that keep your device hardened over time.

What Is a Phone Security Score?

A phone security score is a numerical rating (typically 0–100) that reflects how well your device is protected against common threats like malware, phishing, data leakage, and unauthorized access. Both operating systems and third-party security apps calculate this score by evaluating settings like screen lock strength, OS version, app permissions, encryption status, and network hygiene.

Think of it like a credit score for your device's safety. A higher score means fewer exploitable weaknesses. Most security tools that report this number look at 15–30 individual signals and roll them into a single, easy-to-read metric.

Common Factors That Affect Your Score

• Operating system and security patch level
• Screen lock method (PIN, biometrics, complexity)
• Two-factor authentication on linked accounts
• App permissions and installed apps from unknown sources
• Device encryption status
• Wi-Fi and Bluetooth exposure
• Backup and remote-wipe readiness

Step 1: Update Your Operating System and Apps

Outdated software is the single biggest reason phones get compromised. Every OS update patches vulnerabilities that attackers actively exploit, so keeping your device current is the fastest way to raise your security score.

1. Open Settings → General → Software Update (iOS) or Settings → System → System Update (Android).
2. Install any pending updates immediately.
3. Enable automatic updates for both the OS and apps.
4. Open your app store and update every installed app.
5. Uninstall apps you haven't used in the past 90 days—unused apps are silent risks.

If your phone no longer receives official security patches, that alone can drop your score by 20 points or more. Devices older than 5–6 years often fall into this category, and it may be time to upgrade.

Step 2: Strengthen Your Screen Lock and Biometrics

Your lock screen is the first line of defense against physical theft. A weak PIN like 1234 or a short pattern can be brute-forced in seconds.

Recommended Lock Settings

• Use a 6-digit PIN minimum, or better, an alphanumeric passcode.
• Enable Face ID, Touch ID, or fingerprint for daily convenience—but keep the strong passcode as backup.
• Set auto-lock to 30 seconds or less.
• Enable erase data after 10 failed attempts (iOS) or a similar lockout on Android.
• Disable lock screen previews of messages and notifications.

Biometrics are convenient but not perfect. In situations where you may be forced to unlock (border crossings, arrests in some jurisdictions), knowing how to quickly disable biometrics and require a passcode is a critical skill.

Step 3: Audit App Permissions Ruthlessly

Most apps request more permissions than they need. A flashlight app doesn't need your contacts, and a photo editor rarely needs your microphone. Reviewing permissions every few months can raise your security score noticeably.

Permissions to Review First

Permission	Risk Level	Recommended Setting
Location	High	"While using app" or off
Microphone	High	Off unless actively needed
Camera	High	Ask every time
Contacts	Medium	Off for most apps
Files & Photos	Medium	Selected photos only
Background activity	Medium	Off for non-essential apps
Notifications	Low	Off for marketing apps

On iOS, go to Settings → Privacy & Security. On Android, check Settings → Privacy → Permission Manager. Revoke anything that feels excessive.

Step 4: Enable Two-Factor Authentication Everywhere

Two-factor authentication (2FA) adds a second layer beyond your password, so even if credentials leak, attackers can't get in. Enabling 2FA on your primary accounts is one of the highest-impact security upgrades you can make.

1. Turn on 2FA for your Apple ID or Google Account first—this protects your entire device ecosystem.
2. Add 2FA to email, banking, social media, and cloud storage.
3. Use an authenticator app (Authy, Google Authenticator, or your OS's built-in codes) instead of SMS when possible—SMS can be intercepted via SIM-swap attacks.
4. Store backup recovery codes in a password manager or offline safe.

Step 5: Use a Password Manager

Reusing passwords across sites is one of the fastest ways to get hacked. A single breached site becomes a master key to everything else. A password manager solves this by generating and storing unique, strong passwords for every account.

Both iOS (iCloud Keychain) and Android (Google Password Manager) include free, built-in managers. Third-party options like Bitwarden, 1Password, and Proton Pass offer cross-platform sync and advanced sharing features. Most security score tools award significant points once a password manager is active and monitoring for breached credentials.

Step 6: Verify Every Link Before You Tap

Phishing has moved almost entirely to mobile. Attackers send shortened links via SMS (smishing), messaging apps, and email that lead to fake login pages designed to steal your credentials. Because phone screens hide full URLs, spotting a bad link is harder than on desktop.

Safer Link Habits

• Long-press any link to preview the destination before opening it.
• Never enter credentials on a page you reached from a link—navigate manually instead.
• Be extra suspicious of urgent messages about deliveries, banking, or account lockouts.
• Use a trustworthy link shortener when sharing your own URLs so recipients see a clean, predictable domain. Tools like Lunyb add click analytics and let you preview destinations, which is safer than opaque shorteners.
• If you evaluate multiple options, our 2026 buyer's guide to URL shorteners compares privacy features across the top providers.

Step 7: Secure Your Network Connections

Public Wi-Fi is convenient and risky. Open networks let anyone on the same connection potentially intercept traffic or spoof captive portals.

Network Hardening Checklist

• Turn off auto-join for open networks.
• Delete saved networks you no longer use—your phone constantly probes for them.
• Enable encrypted DNS (DNS over HTTPS or DNS over TLS). iOS supports this natively via configuration profiles; Android offers Private DNS under network settings.
• Turn off Bluetooth and Wi-Fi when you're not using them, especially in crowded places.
• Disable AirDrop / Nearby Share when not actively transferring files, or set them to "Contacts Only."
• Use your phone's mobile data instead of untrusted Wi-Fi for sensitive activity like banking.

Step 8: Enable Device Encryption and Remote Wipe

Modern iPhones encrypt storage by default once you set a passcode. Most recent Android devices do the same, but it's worth confirming under Settings → Security → Encryption.

Then enable remote-location and remote-wipe features:

• iOS: Settings → [Your Name] → Find My → Find My iPhone → turn on all toggles.
• Android: Settings → Google → Find My Device → enable.

These features let you locate, lock, or erase a lost device from any browser. Security scoring tools consistently award points for having them enabled.

Step 9: Review Installed Apps and Their Sources

Only install apps from official stores—the Apple App Store or Google Play. Sideloading APKs from random websites is one of the fastest ways to install malware on Android. On iOS, avoid enterprise-signed apps unless you fully trust the issuer.

1. Uninstall apps you don't recognize.
2. Check the developer name—counterfeits often clone popular app icons.
3. Read recent reviews for red flags like unexpected charges or crashes.
4. On Android, disable Install unknown apps for every browser and messaging app.

Step 10: Back Up Regularly

Backups protect against ransomware, theft, and hardware failure. A phone with recent encrypted backups scores higher because recovery is possible without paying attackers or losing data.

• Enable iCloud Backup (iOS) or Google One Backup (Android).
• For maximum privacy, enable Advanced Data Protection on iCloud, which end-to-end encrypts backups.
• Periodically back up to a local encrypted computer as a second copy.

Step 11: Harden Privacy Settings

Privacy and security overlap heavily on mobile. The less data your phone leaks, the smaller your attack surface.

• Turn off ad tracking and reset your advertising ID.
• Disable personalized ads in Apple and Google settings.
• Limit diagnostic data sharing to the minimum.
• Review third-party apps connected to your Apple ID or Google Account and revoke access to unused ones.
• Use a privacy-focused browser (Safari with strict tracking prevention, Firefox Focus, or Brave) for sensitive browsing.

Step 12: Build Ongoing Security Habits

Improving your score once is easy. Keeping it high requires monthly attention. Put a recurring reminder in your calendar to:

1. Install pending OS and app updates.
2. Review app permissions.
3. Check for breached passwords in your password manager.
4. Delete unused apps and stale saved Wi-Fi networks.
5. Confirm your backups completed successfully.

Quick Reference: Impact vs. Effort

Action	Security Impact	Effort
Install OS updates	Very High	Low
Enable 2FA on key accounts	Very High	Medium
Use a password manager	Very High	Medium
Strong passcode + biometrics	High	Low
Audit app permissions	High	Medium
Encrypted DNS	Medium	Low
Enable Find My / remote wipe	Medium	Low
Turn off Bluetooth when unused	Low	Low

Frequently Asked Questions

How often should I check my phone's security score?

Once a month is a good rhythm for most people. If you install a lot of new apps, travel frequently, or use your phone for sensitive work, checking every two weeks is smarter. Most security dashboards will also alert you when your score drops significantly.

Is iPhone or Android more secure by default?

iPhones tend to score higher out of the box because Apple controls both hardware and software and pushes updates directly to all supported devices. Android's security has improved dramatically, but scores depend heavily on the manufacturer's update cadence. A well-configured Pixel or recent Samsung device can match or exceed an iPhone in most areas.

Do I need a mobile antivirus app?

On iOS, no—the sandboxed app model makes traditional antivirus unnecessary and largely ineffective. On Android, Google Play Protect is built in and handles most threats. A reputable third-party security app can add value if you sideload apps or want extra phishing protection, but avoid free apps from unknown vendors—they often make security worse.

What is the single most important step to raise my score?

Enable 2FA on your primary account (Apple ID or Google Account). This one change protects your email, backups, purchases, and every linked service simultaneously. Combined with a strong passcode and current OS, it addresses the top three attack vectors at once.

Can shortened links really be a security risk?

Yes, when they hide the destination. Attackers use shorteners to disguise phishing URLs. The fix isn't to avoid shorteners entirely—they're useful for tracking and clean sharing—but to use reputable ones and always long-press links to preview them. Transparent services like Lunyb provide previewable, analytics-backed links, which are safer to share and to receive than random opaque redirects.

Final Thoughts

A high phone security score isn't about paranoia—it's about closing easy doors so attackers move on to softer targets. Most of the steps above take under five minutes each, and together they can lift a typical score from mediocre to excellent in a single afternoon. Start with updates, passcodes, and 2FA today, then work through permissions and network settings this weekend. Your future self will thank you the next time a phishing text lands in your inbox or you misplace your phone in a taxi.