Was my iPhone hacked?

Your phone has not been hacked. You tapped a scam link, which tried to scare you into believing the impossible. Delete the scam. Don't interact with them in any way. They just hope you're dumb enough to believe them and you'll pay for software/tools you don't need for a problem you don't have.

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

Also, whatever site you were on which sent you the scam message was paid by the scammers to try to scam you. I'd avoid that site going forward.

No, your phone is not hacked! There is nothing you need to do other than quit visiting nefarious websites that try to scare you by popping up advertisements to get you to download some software to fix a problem you do not have. How did you even decide to go to that website?

No hack. No issues. No compromises.

That’s an advertisement.

Ignore it.

Enjoy the rest of your day.

Details: That’s one of various sketchy advertisements usually for some sketchy app in the app store, and usually for an unnecessary and problematic app and an app that likely doesn’t even address what the advertisement was falsely claiming had happened. And yes, there are sketchy apps in the app store, too.

Here is another common scam advertisement, and some tips for recognizing scam ads and scam claims:

• Recognizing Apple Pay Fraud Report Scams - Apple Community

And from Apple:

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

Your phone was not hacked.

These are lies, presented by scammers, in an attempt to get you to either

• Purchase software or services that will do nothing to fix the alleged "problem"; or
• Contact scammer criminals (posing as "tech support") directly, so they can trick you into revealing bank account or credit card information that they can use to rip you off

The criminals know that words and phrases like "hacked", "Hacker is tracking you!", etc. frighten people – and they are counting on you being so scared by their lies that you will act without thinking, and get scammed. They'll send these lies out to thousands or millions of people in hopes that a few would-be "phish" will bite and be scammed.

Don't bite, and don't be a "phish".

Don't worry, you weren’t hacked, this is just a scam to call a fake “Apple Support” phone number so they can scam you. No further action needed!