virus on iphone 11

No, the message is nothing more than advertising. The presenter of the message wants you to download some useless, garbage app, or worse still, have you divulge your personal or financial information. Do not interact with the message, the website or the sender of the message.

No. All such messages are scams presented by criminals. Close the offending page and avoid sites that are involved in such bogus advertising tactics.

Phony "tech support" / "ransomware" popup… - Apple Community

Uninstall the useless app.

Check for any subscriptions to the app.

Contact your financial institution to inform them of the scam. You will probably need a new credit card.

You are welcome.

Stay alert, as such scams are far too common.

Please read through the user tip posted above for other examples of scam attempts.