A pop up on my iPhone stated I had a virus. Is this a scam?

All such messages are scams presented by criminals. Do not interact with the message or the sender. Do not download anything based on such messages.

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

Apple will never send a message like this, so you know that this is a scam.

The bit about your hardware being "destroyed" is a twist that some criminals like to add to panic you more, so you will be more likely to deliver yourself into their "tender", "loving" hands. Sometimes there's a animated countdown timer showing the seconds until the "damage" becomes "permanent."

Yes.

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