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

Your phone holds more of your life than any other device you own — banking apps, personal messages, photos, work email, and dozens of logged-in accounts. A low security score on your phone isn't just a cosmetic warning; it's a signal that attackers have an easier path to your data. This guide walks you through exactly how to improve your phone's security score, whether you're on iOS or Android, and how to keep it high long-term.

What Is a Phone Security Score?

A phone security score is a numerical or categorical rating (often shown as a percentage or color-coded indicator) that evaluates how well-protected your mobile device is against threats. Modern operating systems and security apps calculate this score based on factors like OS version, password strength, biometric settings, app permissions, and encryption status.

Google's Security Checkup, Apple's Safety Check, and third-party tools like Bitdefender Mobile Security, Norton 360, and Lookout all generate some form of score. A higher score indicates fewer exploitable weaknesses — but reaching 100% requires a combination of settings, habits, and awareness.

Why Your Security Score Matters

• Account protection: A compromised phone often leads to compromised email, banking, and social accounts.
• Identity theft prevention: Phones store ID photos, tax documents, and biometric data.
• Financial safety: Mobile payment apps and saved cards are prime targets.
• Privacy: Location, contacts, and conversations can be exposed through poor settings.

Step 1: Update Your Operating System and Apps

Outdated software is the single biggest contributor to a low security score. Every OS update patches vulnerabilities that attackers actively exploit within days of disclosure.

1. Open Settings → General → Software Update (iOS) or Settings → System → System Update (Android).
2. Install any pending updates immediately.
3. Enable automatic updates so future patches arrive overnight.
4. Open your app store and update all apps — especially browsers, banking apps, and messengers.
5. Delete apps you haven't used in 90 days; unused apps still receive data and can be exploited.

If your phone is more than 5 years old and no longer receiving security updates, your score will be permanently capped. Consider upgrading to a device still supported by the manufacturer.

Step 2: Strengthen Your Lock Screen

Your lock screen is the first and most important barrier. A weak PIN or no biometrics drops your security score instantly.

Recommended Lock Screen Settings

• Use a 6-digit PIN minimum, or better, an alphanumeric passcode of 8+ characters.
• Enable Face ID, Touch ID, or fingerprint unlock as a convenience layer — not a replacement for a strong PIN.
• Set auto-lock to 30 seconds or less.
• Turn on Erase Data after 10 failed attempts (iOS) or equivalent on Android.
• Disable lock screen notifications that reveal message content or 2FA codes.

Step 3: Enable Two-Factor Authentication Everywhere

Two-factor authentication (2FA) adds a second verification step beyond your password, blocking the vast majority of account takeover attempts. Security scoring tools heavily weight whether your primary accounts have 2FA enabled.

Priority Accounts to Secure First

1. Your Apple ID or Google account (controls your entire phone)
2. Primary email addresses
3. Banking and payment apps
4. Social media (used for password resets elsewhere)
5. Cloud storage (iCloud, Google Drive, Dropbox)

Use an authenticator app (Google Authenticator, Authy, 1Password, Microsoft Authenticator) instead of SMS where possible. SMS codes can be intercepted through SIM-swap attacks.

Step 4: Audit App Permissions

Every permission you grant is a potential leak. A flashlight app does not need your contacts, and a weather app does not need microphone access.

Permission Audit Checklist

Permission	Apps That Legitimately Need It	Red Flag If Requested By
Location (Always)	Maps, ride-sharing	Games, calculators, keyboards
Microphone	Calls, voice memos, meetings	Shopping apps, wallpapers
Contacts	Messaging, email	Photo editors, flashlights
Camera	Camera apps, video calls	News readers, utilities
Accessibility	Screen readers, password managers	Almost anything else

Go to Settings → Privacy & Security (iOS) or Settings → Privacy → Permission manager (Android) and revoke anything suspicious. Set location to "While Using" rather than "Always" wherever possible.

Step 5: Use a Password Manager

Reusing passwords across sites is one of the fastest ways to tank a security score. A password manager generates unique, long passwords for every account and stores them in an encrypted vault.

Top options in 2026 include 1Password, Bitwarden, Dashlane, and Proton Pass. Apple's built-in Passwords app and Google Password Manager also now flag reused and compromised credentials automatically.

Once installed:

1. Import existing passwords.
2. Run the built-in security audit.
3. Replace every reused or weak password, starting with high-value accounts.
4. Enable autofill so you're less tempted to type passwords manually (which protects against keyloggers and shoulder surfing).

Step 6: Secure Your Network Connections

Public Wi-Fi, rogue hotspots, and unencrypted DNS queries can expose your traffic. Improving your phone's security score includes locking down how it connects to the internet.

Network Hardening Tips

• Enable encrypted DNS (DNS-over-HTTPS or DNS-over-TLS). On iOS, install a profile from Cloudflare, Quad9, or NextDNS. On Android, go to Settings → Network → Private DNS and enter a provider hostname.
• Turn off auto-join for open Wi-Fi networks.
• Forget old Wi-Fi networks you no longer use.
• Disable Bluetooth and AirDrop when not in use, and set AirDrop to "Contacts Only."
• Use Private Relay (iCloud+) or similar privacy-forward browsers like Brave, Firefox Focus, or DuckDuckGo.

Step 7: Be Cautious With Links and Downloads

Phishing is now the top delivery method for mobile malware. A single tap on a malicious link can expose credentials or install a profile that grants attackers persistent access.

Safe Link Habits

1. Preview links before tapping — long-press on iOS or Android to see the destination URL.
2. Check for subtle misspellings (amaz0n.com, paypa1.com).
3. Use a trusted link shortener for your own sharing. Services like Lunyb provide clean, trackable short links so recipients can see where they're going — a cleaner alternative to pasted raw URLs. If you want a deeper comparison, see our Best URL Shorteners Reviewed and Compared: 2026 Buyer's Guide.
4. Never install configuration profiles or sideload apps unless you fully trust the source.
5. Report phishing texts (forward to 7726 in the US and many other countries).

Step 8: Enable Device Encryption and Backup

Both iOS and modern Android devices encrypt storage by default once a passcode is set — but you should confirm it and verify your backups are encrypted too.

• iOS: Encryption is automatic with a passcode. Confirm iCloud Backup is enabled and consider turning on Advanced Data Protection for end-to-end encryption of nearly all iCloud data.
• Android: Check Settings → Security → Encryption & credentials. Use Google One backup with end-to-end encryption enabled via a backup PIN.

Backups protect your score indirectly — if ransomware or theft forces you to wipe the device, you can restore to a known-good state without panic-clicking on recovery scams.

Step 9: Review Connected Apps and Sessions

Over time, you grant dozens of third-party apps access to your Google, Apple, Facebook, and Microsoft accounts. Each one is a potential breach point.

1. Visit the security dashboard for each major account.
2. Revoke access for apps you no longer use.
3. Sign out of active sessions on devices you no longer own.
4. Review "Sign in with Apple/Google" entries and remove orphaned ones.

Step 10: Install a Reputable Mobile Security App

A dedicated mobile security app continuously monitors your device, scans downloads, checks for leaked credentials on the dark web, and raises your security score through real-time protection.

Pros and Cons of Mobile Security Apps

Pros:

• Automatic scanning of apps and files
• Phishing protection in browsers and messaging apps
• Dark web monitoring for leaked emails and passwords
• Anti-theft features (remote wipe, locate, alarm)
• Clear dashboards that quantify your security score

Cons:

• Battery drain if poorly optimized
• Subscription cost ($15–$80/year)
• iOS versions are more limited due to platform restrictions
• Some overlap with built-in OS protections

Step 11: Prepare for Loss or Theft

A stolen phone with weak security can be ransacked in minutes. Preparation keeps your data safe even after physical loss.

• Enable Find My iPhone or Find My Device.
• Turn on Stolen Device Protection (iOS 17.3+) which adds biometric requirements and time delays for sensitive changes.
• Record your IMEI number (dial *#06#) and store it somewhere safe.
• Practice the remote-wipe process so you can act fast under stress.

Quick-Win Security Score Comparison

Action	Time Required	Impact on Score
Install OS update	15–30 min	Very High
Enable 2FA on main accounts	20 min	Very High
Set 6+ digit passcode	2 min	High
Audit app permissions	15 min	High
Install password manager	1 hour setup	High
Enable encrypted DNS	5 min	Medium
Delete unused apps	10 min	Medium
Review connected apps	20 min	Medium

Building Long-Term Security Habits

A one-time cleanup will spike your score, but it will drift back down without ongoing attention. Build these habits into your routine:

• Monthly: Review new app permissions, update apps, check password manager alerts.
• Quarterly: Run a full security checkup on Apple/Google accounts, audit connected third-party apps.
• Yearly: Change your most critical passwords, confirm backup integrity, and verify emergency contacts and recovery options.

If you share links regularly as part of work or content creation, use a trustworthy shortener instead of random free tools — see our honest review of Lunyb for context on choosing a safe provider.

Frequently Asked Questions

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

Check your security score at least once a month, and immediately after installing a new app, changing accounts, or receiving a suspicious message. Many security apps and Google/Apple account dashboards will prompt you automatically when something changes.

Does a factory reset improve my security score?

A factory reset removes malware, old permissions, and forgotten apps, which can significantly raise your score — but only if you then set up the phone with strong settings from the start. It's a reasonable step if you suspect compromise or inherited a used device, but overkill for routine maintenance.

Is iPhone or Android more secure out of the box?

iPhones generally start with a higher baseline security score because of tighter app sandboxing, mandatory app review, and faster OS updates across the lineup. Modern Pixel and Samsung flagship devices are extremely close, however, and well-configured Android can match or exceed a poorly configured iPhone. The user's habits matter more than the brand.

Can antivirus apps actually scan iPhones?

iOS restricts deep system scanning, so iPhone security apps focus on web protection, phishing filters, breach monitoring, and Wi-Fi analysis rather than traditional file scanning. They still raise your effective security score by catching threats before they reach the OS layer.

What's the single most important thing to do today?

Enable two-factor authentication on your primary Apple ID or Google account. That one change protects every other account tied to your phone and is the fastest way to meaningfully raise your security score.