Can my iPhone be hacked? Getting some weird pop ups

No, your iPhone can’t be hacked. Any messages saying it can be or it has been are scams to steal your identify. See→Recognize and avoid phishing messages, phony support calls, and other scams - Apple Support

Where are you seeing these messages?

Crynis wrote:

I keep getting these pop up messages saying i need to install Macafree software to protect the phone and all data on it says Apple care on it to

If these messages are calendar alert messages as is typical, you’ve been offered and subscribed to a spammer’s advertising calendar somewhere along the way, and you need only delete the subscribed calendar.

Here is how > Delete spam calendars and events on iPhone - Apple Support

There are lots of different sorts of scams and spam.

Scam Pop-ups, Scam Viruses, Scam Receipts… - Apple Community

The local rule of thumb locally is to never install anything that you did not go looking for.

I keep getting these pop up messages saying i need to install Macafree software to protect the phone and all data on it says Apple care on it to