The Settings app does not contain a conventional antivirus scanner that lists every virus on an iPhone. Apple builds security checks into iOS, and the system can block an identified malicious third-party app and display a warning. You can still use Settings to review several signs of unwanted access or configuration.
Security checks you can make in Settings
- Go to Settings > General > Software Update and install an available iOS update.
- Check Settings > General > VPN & Device Management for profiles you do not recognize.
- Tap your name in Settings and review the devices associated with your Apple Account.
- Open Settings > Privacy & Security > Safety Check when you need to review sharing, permissions, connected devices, or account security.
- Review installed apps and remove apps you do not recognize or trust.
If iOS reports malware
If the iPhone explicitly says that a third-party app contains malware and cannot be opened, Apple recommends deleting that app. That system warning is different from a browser advertisement claiming your phone is infected.
Avoid fake virus warnings
Web pages can display alarming messages designed to make you install an app, subscribe to a service, or call a number. A webpage cannot prove that it scanned your entire iPhone simply by loading in Safari.
Before changing anything else
Test the specific feature again after completing the steps above. If the problem remains, avoid installing unknown “fix,” cleaner, security, or utility apps simply because an advertisement promises an immediate solution. Check the iPhone’s software version, network or account status when relevant, and any messages shown by iOS before moving to more disruptive troubleshooting.
If a change could erase data, affect an account, or alter cellular service, make sure you understand the consequence and have a current backup when possible. Apple can also change feature availability between models and software releases, so a missing option does not necessarily indicate a fault with the phone.