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

Your smartphone holds more sensitive data than your laptop, your wallet, and your filing cabinet combined. Banking apps, private messages, photos, health records, work emails, two-factor codes — it's all sitting behind a single lock screen. That's exactly why security tools now measure something called a phone security score, a numerical rating that reflects how well your device is defended against threats.

The good news? You don't need to be a cybersecurity expert to raise that score. In this guide, you'll learn exactly how to improve your phone security score with practical, high-impact steps that work on both iOS and Android in 2026.

What Is a Phone Security Score?

A phone security score is a rating (usually 0–100) that measures how resilient your smartphone is against common threats like malware, phishing, unauthorized access, and data leaks. It's calculated based on factors like your OS version, screen lock strength, app permissions, network settings, and whether you've enabled features like biometric authentication and encrypted backups.

Both Apple and Google now surface security recommendations inside their built-in settings, and third-party security apps like Bitdefender, Norton, and Lookout assign a numerical score you can track over time. A higher score means a lower risk of being compromised.

Why Your Security Score Matters in 2026

Mobile threats have exploded. In 2025 alone, researchers documented over 33 million mobile malware attacks globally, and phishing links delivered via SMS (smishing) grew by more than 300% year-over-year. A weak security score isn't just theoretical — it's the difference between catching a threat early and losing your identity to a stranger overseas.

Step 1: Update Your Operating System Immediately

The single biggest improvement you can make is running the latest version of iOS or Android. Every update patches known vulnerabilities that attackers actively exploit.

1. iOS: Go to Settings > General > Software Update, and enable Automatic Updates.
2. Android: Go to Settings > System > System Update, then check for the latest security patch under Settings > Security > Google Play system update.
3. Also update your apps individually via the App Store or Google Play — outdated apps are one of the top attack vectors.

If your phone is more than 5–6 years old and no longer receives security patches, it's time to upgrade. No amount of tweaking can compensate for an abandoned OS.

Step 2: Strengthen Your Lock Screen and Authentication

Your lock screen is the first and last line of defense. A four-digit PIN can be cracked in under an hour with the right tools.

Recommended Lock Settings

• Use a 6-digit PIN minimum, or better, an alphanumeric passcode of 8+ characters.
• Enable Face ID, Touch ID, or fingerprint unlock — biometrics are convenient and secure when paired with a strong backup passcode.
• Turn on auto-wipe after 10 failed attempts (iOS: Settings > Face ID & Passcode > Erase Data).
• Disable lock screen access to notifications, wallet, and Siri/Assistant for sensitive apps.

Step 3: Audit and Restrict App Permissions

App permissions are one of the fastest ways to raise your security score because most people grant apps far more access than they need. That flashlight app doesn't need your contacts. That game doesn't need your microphone.

How to Audit Permissions

1. iOS: Settings > Privacy & Security. Review each category (Location, Camera, Microphone, Contacts, Photos).
2. Android: Settings > Privacy > Permission Manager. Check every category and revoke access for apps you rarely use.
3. Set location access to "While Using" or "Ask Every Time" rather than "Always."
4. Delete apps you haven't opened in 90+ days. Fewer apps = smaller attack surface.

Step 4: Enable Two-Factor Authentication Everywhere

Two-factor authentication (2FA) is a login method that requires a second verification step beyond your password. Even if a hacker steals your password, they can't get in without your second factor.

Enable 2FA on your Apple ID or Google Account first — these are the master keys to your phone. Then apply it to every high-value account: banking, email, social media, cloud storage, and any work-related logins.

2FA Method Comparison

Method	Security Level	Convenience	Recommended?
SMS codes	Low	High	Only if nothing else available
Authenticator app (Authy, Google Authenticator)	High	Medium	Yes — best balance
Hardware key (YubiKey)	Very High	Low	Yes, for critical accounts
Passkeys	Very High	Very High	Yes — future-proof choice

Step 5: Use Encrypted DNS and Private Browsing

Every time you visit a website, your phone makes a DNS query that reveals what you're browsing. By default, these queries are unencrypted and visible to your network provider and anyone snooping on public Wi-Fi.

How to Enable Encrypted DNS

1. iOS: Install a configuration profile from providers like Cloudflare (1.1.1.1 app) or NextDNS.
2. Android 9+: Settings > Network & Internet > Private DNS > enter a hostname like 1dot1dot1dot1.cloudflare-dns.com.
3. Use privacy-focused browsers like Brave, Firefox Focus, or Safari with Intelligent Tracking Prevention enabled.

When sharing links from your phone, avoid pasting raw URLs that might expose tracking parameters or affiliate IDs. Tools like Lunyb let you create clean, shortened links that hide messy query strings and reduce the amount of metadata you leak when sharing content. For a deeper dive into trustworthy link tools, see our honest Lunyb review.

Step 6: Lock Down Wi-Fi and Bluetooth

Open networks and always-on Bluetooth are two of the most overlooked vulnerabilities.

• Turn off Auto-Join for public Wi-Fi networks.
• "Forget" old networks you no longer use (Settings > Wi-Fi > Edit).
• Disable Bluetooth when not actively using it — many attacks exploit background Bluetooth pairing.
• Turn off AirDrop / Nearby Share when you're in public spaces.
• Never enter passwords or banking info while connected to a public hotspot.

Step 7: Encrypt Your Backups and Cloud Storage

A hardened phone is useless if your backups are wide open. Both iOS and Android now offer end-to-end encrypted backup options — but they're not always on by default.

1. iOS: Enable Advanced Data Protection in Settings > [Your Name] > iCloud > Advanced Data Protection. This encrypts iCloud Backup, Photos, Notes, and more end-to-end.
2. Android: Google backups are encrypted with your device PIN by default, but verify at Settings > Google > Backup.
3. For local iTunes/Finder backups, always check "Encrypt local backup" and use a strong password.

Step 8: Install a Reputable Mobile Security App

A dedicated mobile security app scans for malware, phishing links, and risky Wi-Fi networks in real time. It also gives you a live security score dashboard so you can track improvements.

Pros and Cons of Mobile Security Apps

Pros:

• Real-time malware and phishing protection
• Ongoing security score tracking
• App reputation checks and Wi-Fi scanning
• Data breach alerts tied to your email

Cons:

• Some apps drain battery
• Free tiers are often limited
• Overlaps with built-in iOS/Android protections

Step 9: Be Ruthless About Phishing Links

Phishing is now the number-one way phones get compromised. A single tap on a fake bank SMS can drain your account within minutes.

• Never tap links from unknown numbers or unexpected emails.
• Hover-preview links when possible (long-press on iOS/Android).
• Verify shortened links using a URL expander before opening them.
• Report suspicious SMS as junk — both iOS and Android now have built-in reporting.

If you regularly share or receive links, using a trusted shortener with click analytics and link previews makes phishing far easier to spot. Our 2026 buyer's guide to URL shorteners compares the safest options, and our Rebrandly review covers one of the most popular enterprise choices.

Step 10: Enable Remote Wipe and Find My Device

If your phone is lost or stolen, remote wipe is the difference between an annoying replacement and full-blown identity theft.

1. iOS: Settings > [Your Name] > Find My > enable Find My iPhone, Find My Network, and Send Last Location.
2. Android: Settings > Security > Find My Device > toggle on. Verify at android.com/find.
3. Test it once, right now, from another device — most people never realize theirs is misconfigured until it's too late.

Quick-Reference Checklist

Action	Impact on Score	Time Required
Update OS + apps	Very High	10 min
Strong passcode + biometrics	Very High	5 min
Audit permissions	High	15 min
Enable 2FA everywhere	Very High	30 min
Encrypted DNS	Medium	5 min
Encrypted backups	High	5 min
Security app installed	Medium	10 min
Remote wipe enabled	High	2 min

Complete all eight items and most security scoring tools will push your device from the 60–70 range up to 90+.

Frequently Asked Questions

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

Monthly at minimum. Security scores drop as new vulnerabilities are discovered, permissions drift, and apps update. A quick monthly review takes five minutes and catches issues before they become breaches.

Do iPhones really need extra security apps?

iOS is more locked down than Android, but it's not immune. Phishing, weak passwords, misconfigured iCloud settings, and malicious profiles still affect iPhones. A dedicated security app adds phishing protection and breach monitoring that iOS alone doesn't provide.

Will improving my security score slow down my phone?

No — in fact, it often speeds things up. Removing unused apps, revoking permissions, and cleaning up background processes reduces resource usage. The only mild impact might come from real-time scanning apps, but modern ones are highly optimized.

What's the single most important step if I can only do one?

Enable two-factor authentication on your primary email and cloud account (Apple ID or Google Account). If an attacker gets into that one account, they can reset every other password you own. Locking it down blocks the vast majority of real-world attacks.

Are shortened URLs safe to click?

They can be, but only if you trust the source and the shortener. Reputable services offer link previews, malware scanning, and click analytics that help you verify a destination before visiting. Avoid clicking shortened links from unknown senders, and use a link expander when in doubt.

Final Thoughts

Improving your phone's security score isn't about paranoia — it's about making yourself a harder target than the next person. Every step in this guide takes minutes but blocks entire categories of attacks. Start with OS updates, lock screen strength, and 2FA today, then work through the rest over the next week.

Your future self — the one who didn't get their bank account drained or their identity stolen — will thank you.