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

Your phone is the most personal device you own. It holds your banking apps, private messages, photos, location history, and access to nearly every online account you have. A weak security posture means a single phishing link or stolen device can cascade into identity theft, financial loss, or account takeover. That's why your phone's security score—a measure of how well-protected your device is—matters more than ever in 2026.

This guide walks you through exactly how to improve your phone security score on both iOS and Android, covering settings, habits, and tools that meaningfully raise your defenses. Whether you use a built-in tool like Google's Security Checkup or Apple's Safety Check, or a third-party security app, these steps will move the needle.

What Is a Phone Security Score?

A phone security score is a numeric or grade-based rating that reflects how well your device is configured against common threats. It typically evaluates your operating system version, screen lock strength, app permissions, encryption status, network safety, and account-level protections like two-factor authentication.

Different tools calculate the score differently:

Google Security Checkup reviews your Google account and connected Android devices.
Apple Safety Check reviews sharing, account access, and device pairings.
Third-party security suites (Bitdefender, Norton, Kaspersky, ESET) generate scores from 0–100 based on dozens of signals.

Regardless of which tool you use, the underlying principles are the same: minimize attack surface, harden authentication, and stay updated.

Why Your Phone Security Score Matters in 2026

Mobile attacks have grown sharper. SIM-swap fraud, malicious sideloaded apps, smishing (SMS phishing), and zero-click exploits are all routine threats. A high security score correlates strongly with reduced risk because it forces attackers to bypass multiple layers instead of one.

Consider the data points: according to industry reports, more than 60% of successful account takeovers involve a mobile device, and nearly 80% of phishing now targets phones rather than desktops. Improving your score is not theoretical—it's the most cost-effective security investment most people can make.

Step-by-Step: How to Improve Your Phone Security Score

Follow this prioritized checklist. The order matters: each step builds on the previous one.

Update your operating system. Install the latest iOS or Android version and any pending security patches.
Strengthen your screen lock. Use a 6+ digit PIN or alphanumeric passcode, plus biometrics.
Enable full-device encryption. On modern iPhones and Android 10+ devices, this is on by default—verify it.
Turn on two-factor authentication (2FA) for your Apple ID or Google account, plus banking, email, and social media.
Audit app permissions. Revoke location, microphone, camera, and contact access for apps that don't need it.
Remove unused apps. Each app is a potential vulnerability.
Enable Find My iPhone or Find My Device. This allows remote lock and wipe.
Install a reputable mobile security app for malware scanning and phishing detection.
Use encrypted DNS (like Cloudflare 1.1.1.1 or NextDNS) to block trackers and malicious domains at the network level.
Review and revoke third-party account access via Google or Apple account settings.

iOS-Specific Security Hardening

Apple's ecosystem makes hardening relatively simple, but defaults aren't always optimal.

Enable Lockdown Mode (For High-Risk Users)

Introduced in iOS 16 and refined since, Lockdown Mode disables many attack vectors—complex message attachments, certain web technologies, and incoming FaceTime calls from unknown numbers. Journalists, activists, and executives should consider it. Find it under Settings → Privacy & Security → Lockdown Mode.

Run Safety Check

Go to Settings → Privacy & Security → Safety Check. This tool helps you quickly revoke sharing access, sign out of other devices, and reset system privacy permissions—especially useful after a relationship ends or a device is lost.

Turn On Advanced Data Protection

This extends end-to-end encryption to iCloud Backup, Photos, Notes, and more. Once enabled, even Apple cannot access your data. Required: a recovery key or recovery contact.

Android-Specific Security Hardening

Android's flexibility is its strength and weakness. The right configuration closes most gaps.

Use Google Play Protect

Open the Play Store, tap your profile, and ensure Play Protect is active. It scans installed apps and warns about harmful behavior. Run a manual scan monthly.

Disable Sideloading Unless Necessary

Under Settings → Apps → Special app access → Install unknown apps, ensure no browsers or messaging apps have permission to install APKs. Sideloaded apps are the #1 source of Android malware.

Enable Enhanced Safe Browsing in Chrome

This sends real-time URL checks to Google, catching phishing pages before they load. Go to Chrome → Settings → Privacy and Security → Safe Browsing → Enhanced protection.

iOS vs Android Security Feature Comparison

Feature	iOS (iPhone)	Android
Default encryption	Yes (since iPhone 3GS)	Yes (Android 10+)
App store vetting	Strict (Apple review)	Moderate (Play Protect)
Sideloading risk	Very low (EU only in some cases)	Higher if enabled
Update delivery	Direct from Apple, 5–7 years	Varies by manufacturer
Built-in safety tool	Safety Check, Lockdown Mode	Security Checkup, Play Protect
E2E cloud backup	Advanced Data Protection	Backup encryption (default)

Authentication: The Highest-Impact Upgrade

Most account compromises start with a stolen password. Strengthening authentication delivers the biggest security score gain per minute spent.

Switch to Passkeys Where Possible

Passkeys replace passwords with cryptographic keys tied to your device biometrics. They're phishing-resistant by design. Google, Apple, Microsoft, Amazon, PayPal, and many banks now support them. Enable passkeys in each account's security settings.

Use an Authenticator App, Not SMS

SMS-based 2FA is vulnerable to SIM-swap attacks. Use an authenticator app (Authy, 1Password, Aegis, or Google Authenticator) or a hardware security key (YubiKey) for sensitive accounts.

Adopt a Password Manager

Reusing passwords drags your security score down across every linked service. A reputable password manager generates and stores unique credentials, and most flag breached or weak passwords automatically.

Network and Link Safety

Public Wi-Fi, malicious links, and shady QR codes are common entry points. Defending against them takes only a few habits.

Use Encrypted DNS

Configure DNS-over-HTTPS or DNS-over-TLS through providers like Cloudflare (1.1.1.1), Quad9, or NextDNS. This encrypts your DNS lookups and blocks known malicious domains before your browser even connects.

Verify Shortened Links Before Tapping

Shortened links hide the destination, which attackers exploit. Use a trustworthy shortener that supports link previews and analytics, so recipients can verify destinations. Lunyb is one option built with transparency and click reporting in mind—useful both for sending and inspecting links. For a broader comparison, see our best URL shorteners guide for 2026 and our Rebrandly review for an enterprise-focused alternative.

Be Skeptical of QR Codes

Scan QR codes only from trusted sources. Your camera app should preview the URL before opening—always read it.

App Permissions: The Hidden Score Killer

App permissions are the most overlooked factor in mobile security scoring. Every app with microphone, location, or contacts access expands your attack surface.

Conduct a Quarterly Permission Audit

Open Settings → Privacy & Security (iOS) or Settings → Privacy → Permission manager (Android).
Review each permission category: Location, Microphone, Camera, Contacts, Photos, Bluetooth.
Revoke access for any app that doesn't need it for core functionality.
Set location to "While Using" or "Ask Next Time" rather than "Always."
Delete apps you haven't opened in 90 days.

Physical Device Security

A high digital security score means little if someone can grab your unlocked phone. Physical hardening matters.

Use a Strong Passcode, Not Just Biometrics

Biometrics unlock the phone, but the passcode is the master key. Use at least 6 digits—ideally an alphanumeric passphrase. Disable simple 4-digit PINs.

Enable Auto-Erase After Failed Attempts

On iOS, Settings → Face ID & Passcode → Erase Data wipes the phone after 10 failed attempts. Combine this with iCloud backups so you don't lose data.

Hide Lock Screen Notifications

Sensitive notifications—2FA codes, banking alerts, messages—shouldn't show on the lock screen. Set notifications to display only when the phone is unlocked.

Backup and Recovery

Backups aren't just about lost data—they're about being able to wipe a compromised phone without hesitation.

iOS: Enable iCloud Backup and turn on Advanced Data Protection for end-to-end encryption.
Android: Enable Google One backup; verify backup encryption is active.
Store recovery codes offline: Print 2FA recovery codes and keep them in a safe.
Set up trusted recovery contacts on Apple ID or Google account.

Mobile Security Apps: Are They Worth It?

Built-in protections are strong, but a dedicated mobile security app adds anti-phishing, breach monitoring, and Wi-Fi safety checks. Consider one if you frequently install apps, travel internationally, or handle sensitive work data.

Solution Type	Best For	Typical Cost
Built-in (Play Protect / Safety Check)	Most users	Free
Bitdefender Mobile Security	Anti-phishing + scan	~$15/year
Norton 360 Mobile	All-in-one suite	~$30/year
Malwarebytes Mobile	Free malware scanning	Free / $40/year

Pros and Cons of Third-Party Security Apps

Pros:

Real-time phishing protection across messaging apps
Data breach monitoring for your email and phone number
Wi-Fi network analysis
Centralized security score dashboard

Cons:

Subscription cost
Battery and resource use
Some features overlap with built-in tools
Requires broad permissions—choose vendors carefully

Common Mistakes That Lower Your Security Score

Ignoring update notifications for weeks
Reusing the same password across multiple accounts
Granting location "Always" to apps that only need it briefly
Connecting to open Wi-Fi without encrypted DNS
Tapping links in SMS from unknown senders
Keeping old devices signed into your accounts
Skipping 2FA because it's "inconvenient"

How Often Should You Re-Check Your Score?

Treat it like a dental cleaning: every 3 months, run your built-in security checkup and review app permissions. After any major event—lost device, breach notification, relationship change, international travel—run a full audit immediately.

Frequently Asked Questions

What is a good phone security score?

Scores vary by tool, but on a 0–100 scale, anything above 85 is considered strong. The goal is consistent improvement: enable updates, 2FA, encrypted DNS, and permission hygiene, and you'll typically reach the 90+ range without specialized tools.

Does factory resetting improve my security score?

It can, especially if you suspect compromise. A reset removes lingering malware, revokes hidden permissions, and forces you to re-grant access deliberately. Always back up critical data first and change passwords from a clean device.

Are iPhones more secure than Android phones?

iPhones benefit from tighter app review and longer update support, but a well-configured Android device—Pixel or Samsung flagship with current patches—can match iOS security in practice. The bigger factor is user behavior, not the brand.

Do I need both built-in security and a third-party app?

Not necessarily. Built-in tools (Play Protect, Safety Check, Lockdown Mode) cover most users well. Add a third-party app if you want centralized breach monitoring, advanced phishing detection in messaging apps, or you handle high-risk data.

How can I check if a link is safe before tapping it?

Long-press the link to preview the destination URL. For shortened links, use a shortener that offers link previews or analytics dashboards so recipients can verify where they're going. Tools like Lunyb provide click reporting that helps both senders and inspectors confirm a link's legitimacy before action.

Final Thoughts

Improving your phone security score isn't about installing one magic app—it's about layering small, durable habits: updates, strong authentication, permission hygiene, encrypted DNS, and careful link practices. Do the checklist above this weekend, and your score will jump immediately. Then revisit it quarterly. Your future self—and your bank account—will thank you.