iPhone 13 Pro reports virus; seeking repair advice

There are NO IPHONE VIRUSES.

It is a SCAM.

Ignore it and clear history and website data in Settings, Apps, Safari.

Are you sure, that iOS 26 is giving you that message?

Recognize and avoid social engineering schemes including phishing messages, phony support calls, and other scams - Apple Support

Unless you modify the software on your iPhone, your iOS is safe.

Unauthorized modification of iOS - Apple Support

Keep the iPhone updated to the latest iOS always and never Jailbreak. That's it.

iOS / iPadOS devices cannot be infected with Viruses / Malware / Spyware *** unless you have intentionally downloaded spurious software or unauthorized apps directly from the internet and installed them on your device, and/or have Jailbroken. 

**The primary reason for this is Sandboxing. All third-party apps are “sandboxed”, so they are restricted from accessing files stored by other apps or from making changes to the device. Sandboxing is designed to prevent apps from gathering or modifying information stored by other apps.

Security of runtime process in iOS and iPadOS - Apple Support

The sandbox on an iPhone is a security feature that creates a restricted environment for each app to run in isolation from other apps and the operating system. It is a core component of iOS's security architecture and plays a crucial role in making iPhones more secure.