How do I stop identity theft from my own IP address on iPhone?

Stick with what you do know instead of speculating on what you think is happening:

• No your iPhone is not being hacked by satellite
• No it is not being done by your IP Address. In fact when using cellular that changes depending on the cell tower you are connected to and when at home, it is only your routers IP address the is available outside your network and your phone's IP Address is unknown.
• You have identified the problem being your daughters activity on the MacBook.
• Analytic data is useless and the bug reports you see do not in any way show that there is a problem. Some errors you see in the analytics are expected and it would actually be a problem if the error did not show. That is how processes branch from doing one action instead of another. For example, if attempting WiFi access received an error, it would then know to use your cellular data when not in WiFi range. That is simply how your phone determines what to do.

So, after changing your account passwords including email address password and any financial information if that was placed in jeopardy, then explain what the issue is that you are seeing.

If you feel an unauthorized person/app is remotely using, controlling or monitoring your device, then that is possible only if you have done one or more of the following Don'ts...

1. Don't hand over an iPhone to kids or to a stranger without Enabling Guided Access
2. Don't share Apple IDs
3. Don't Jailbreak
4. Don't share sensitive information pertaining to your device
5. Don't give in to Phishing
6. Don't plug in your device in Airports and Public places through third-party cables and trust the device. Beware of Juice Jacking. (Especially in India)
7. Don't leave your iPhone unlocked and unattended in public places like offices, schools, malls, etc.

If one of the above is true then quickly change the Apple ID Password and Return iPhone settings to their defaults.

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

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

It (Hacking) also depends on how careful you are in sharing sensitive and valuable information pertaining to your iPhone such as Passcode, Password, etc with your friends and family members.

Be judicious when sharing the device's sensitive and valuable information with friends and family members.

**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.

If you doubt the authenticity of the information provided earlier, you have two alternatives:

1. Report the hacking incident to local law enforcement authorities and actively pursue the case.
2. Accept the credibility of the information; it is impervious to hacking. Just as some individuals hold unconventional beliefs, such as a flat Earth or moon landing denial, one has the freedom to believe in anything. The choice ultimately rests with you in this open and free world.

Stop poking around in the analytics. There is no useful information there. You don’t have the tools or the training necessary to accurately interpret them.

Sorry, but that’s not happening.

Try actually explaining what’s wrong instead of jumping to the conclusion that your phone was hacked.

Doing so is nearly impossible and extremely expensive.

Best way to get help is to give us examples of the hard proof you have and what exactly the hacker is doing.

So turn “off” your phone as it’s causing you such distress.

Then see this:

https://www.identitytheft.gov/

Re: “….I gave my daughter my old MacBook and signin info …”

Def not a recipe for success.