How to Run an Antivirus Scan on an iPhone

Everyone · How-to · Updated October 1, 2026 · LearnLife Editorial

What do you need before starting a security check on your iPhone?

Before performing any security check on your iPhone, gather a few essentials to ensure the process goes smoothly. First, verify that your iPhone has the latest version of iOS installed. Apple frequently releases updates that patch security vulnerabilities. To check, open Settings, tap General, then tap Software Update. If an update is available, connect to Wi-Fi and tap Download and Install. Installing updates regularly is the most effective way to protect your device against threats.

Next, prepare by reviewing your passcode settings. Open Settings > Face ID & Passcode or Touch ID & Passcode, and if you don’t have a passcode or use a simple one like "1234" or "0000," create a strong passcode. A good passcode is at least six digits or an alphanumeric code you can remember but others cannot guess.

Also, make sure you have a reliable internet connection, ideally on a secure Wi-Fi network, as many security checks and updates require online access. It’s also wise to back up your data beforehand to iCloud or your computer. This way, if you need to reset your phone, you won’t lose photos, contacts, or other important data.

Finally, consider downloading a trusted security app from the App Store. Some apps specialize in alerting you to phishing attempts, unsafe Wi-Fi networks, or data breaches. Look for apps with high reviews and clear privacy policies. Avoid apps that promise to scan your phone like a traditional antivirus, as those claims are misleading on iPhones.

How can you perform a thorough security check on your iPhone step by step?

Since traditional antivirus apps can’t scan iPhones, take the following practical steps to check and secure your device:

1. Update iOS Go to Settings > General > Software Update and install any pending updates. This patches security holes that hackers might exploit.

1. Examine your apps and delete suspicious ones Open Settings > General > iPhone Storage to see all installed apps and their size. Ask yourself if you recognize every app. For example, if you find an app named “System Update” that you didn’t install, delete it immediately. To delete, tap the app and select Delete App.

1. Review app permissions Go to Settings > Privacy and check categories like Location Services, Contacts, Photos, Microphone, and Camera. Scroll through the apps listed under each and ask if each app really needs access. For example, a calculator app doesn’t need to access your microphone. Toggle off permissions that seem unnecessary.

1. Install and run a security app Download a reputable app like Lookout, Norton, or Avast from the App Store. Open the app and follow its instructions to scan for phishing sites, breaches, or insecure networks. These apps cannot scan files but help identify risks from external threats.

1. Restart your iPhone Press and hold the side button and either volume button, then slide to power off. After 30 seconds, turn it back on. This clears temporary glitches that might look like security problems.

1. Clear Safari browsing data Open Settings > Safari > Clear History and Website Data. This removes cookies and trackers that could be used to monitor your activity or serve malicious ads.

1. Reset network settings if you notice network issues If your internet connection behaves oddly or you suspect a Wi-Fi attack, open Settings > General > Reset > Reset Network Settings. This removes saved Wi-Fi passwords and VPN settings, so be ready to re-enter these after the reset.

Completing all these steps regularly strengthens your iPhone’s security and reduces risks from malware or phishing.

How do you know if your iPhone is protected after these security steps?

After performing these steps, your iPhone should behave normally without unexplained slowdowns, crashes, or battery drain. For example, if your battery lasts as usual and you don’t see strange pop-ups or apps opening on their own, that’s a good sign.

To check further, use Apple’s built-in password monitoring tool. Go to Settings > Passwords > Security Recommendations. If you see warnings about reused or compromised passwords, update those accounts immediately with strong, unique passwords.

Your security app should report no alerts or suspicious activity. These apps typically show a dashboard or status message indicating your device’s risk level.

If suspicious behavior continues, such as frequent app crashes or unfamiliar notifications, your phone may have an issue. However, because iOS prevents apps from accessing system files, real infections without jailbreaking are very rare. Regularly repeating these checks helps keep your iPhone safe.

What should you do if you suspect malware or a virus on your iPhone?

If you suspect malware, take these steps promptly:

• Uninstall suspicious or recently installed apps: Press and hold the app icon on the home screen, tap Remove App, then Delete App. Remove any apps you don’t recognize or that behave strangely.
• Back up important data: Use iCloud or connect your iPhone to a computer to back up contacts, photos, and documents before further action.
• Erase all content and settings: Open Settings > General > Reset > Erase All Content and Settings. This restores your iPhone to factory defaults, removing apps and data that could be causing problems. After the reset, set up your iPhone as new before restoring backups to avoid reintroducing malware.
• Avoid jailbreaking: Jailbreaking removes Apple’s security controls and greatly increases infection risk.
• Contact Apple Support: If problems persist or you feel unsure, reach out to Apple or visit an Apple Store for expert assistance.

Acting quickly limits damage and helps restore your device’s security.

How can antivirus advice be adjusted for different iPhone users?

Security advice varies by user type:

• For beginners or less tech-savvy users: Focus on simple steps like enabling automatic iOS updates, setting a strong passcode, and avoiding installing apps from unknown sources. Recommend enabling two-factor authentication for the Apple ID. Avoid installing extra security apps that might confuse them.

• For parents: Use Screen Time and parental controls in Settings > Screen Time to limit app downloads and set content restrictions. Encourage discussions about safe app use and internet behavior for children.

• For business users: Consider enrolling in Mobile Device Management (MDM) systems to enforce security policies such as mandatory passcodes, encryption, and remote wipe options. Use VPNs to secure network connections when working remotely.

• For advanced users: Regularly check app permissions, use security apps to monitor for phishing attempts and data breaches, audit network settings, and review Apple’s Security Recommendations in passwords. Use strong, unique passwords and a password manager.

Adjusting security steps to fit users’ comfort and needs increases the likelihood of maintaining good protection.

Why doesn’t the iPhone require traditional antivirus software?

iPhones run a security model called “sandboxing,” which isolates each app from others and the system. This prevents apps from accessing files or data outside their own space, stopping most malware from spreading.

Apple also controls the App Store tightly, requiring apps to pass strict reviews before users can download them. This reduces the chance of malicious apps being available.

Additionally, iOS restricts app ability to scan system files, meaning traditional antivirus apps that scan all files do not work on iPhones. Instead, Apple uses system-level protections, automatic updates, and app vetting to maintain security.

This approach contrasts with platforms like Android or Windows, where apps have more system access and traditional antivirus software is necessary.

What ongoing habits help keep your iPhone secure?

Beyond scanning or one-time checks, practice these regular security habits:

• Enable two-factor authentication (2FA) on your Apple ID and other accounts to add an extra step for logins.
• Use strong, unique passwords for every account. Apple’s iCloud Keychain or third-party password managers can organize and generate secure passwords.
• Avoid jailbreaking your iPhone to keep Apple’s security intact.
• Be cautious with emails and messages: Don’t click links or open attachments from unknown or suspicious senders to prevent phishing.
• Back up your data regularly to iCloud or your computer to recover information if your phone is lost or compromised.
• Avoid using public Wi-Fi without a VPN to protect your data from interception.
• Keep all apps updated through the App Store to patch security vulnerabilities.

These habits complement device protections and reduce risk over time.

Frequently asked questions

Can I install antivirus software on my iPhone?

No. iPhones do not support traditional antivirus software because of iOS security restrictions. Instead, use trusted security apps to monitor suspicious activity and keep your phone updated.

How often should I update my iPhone for security?

Install iOS updates as soon as they become available to receive important security patches and improvements.

Can iPhones get viruses or malware like a computer?

While possible, it is very rare due to Apple’s security model. Malware is more likely if the iPhone is jailbroken or apps are installed outside the App Store.

What do I do if my iPhone is lost or stolen?

Use **Find My iPhone** to locate or erase your device remotely. Change your Apple ID password and notify your mobile carrier to prevent unauthorized use.

Are free security apps on iPhone reliable?

Some free apps provide useful features like Wi-Fi security alerts and phishing detection. However, they cannot perform full antivirus scans. Choose apps from reputable developers.

What is jailbreaking and why is it risky?

Jailbreaking removes Apple’s built-in security restrictions, allowing unauthorized apps and system changes. This significantly increases vulnerability to malware and voids warranties.