how can I recover a breached Apple ID/IPHONE

Unless your device is jailbroken you cannot change the passcode without physical access to the device.

Read this document if you think your Apple ID has been compromised. --> If you think your Apple ID has been compromised - Apple Support

For iOS 15 or earlier, if you want to see if anyone else has access to your device or accounts, click here --> See who has access to your iPhone or iPad - Apple Support

For iOS 16 or later see how Safety Check on iPhone works to keep you safe. How Safety Check on iPhone works to keep you safe - Apple Support

Use the information in this document to check your Apple ID device list to find where you're signed in --> Check your Apple ID device list to find where you're signed in - Apple Support

Related materials:

Personal Safety User Guide

Personal Safety User Guide - Apple Support

> open the Table of Contents and review the articles

A document with general information about security and your Apple ID --> Security and your Apple ID - Apple Support

Contact Apple for help with Apple ID account security by clicking on this link --> Contact Apple for help with Apple ID account security - Apple Support "This article provides country-specific Apple Support contact information for customers seeking help with their Apple ID password or other security-related issues."

I am having a hard time getting a grasp as to the actual problem you are having.

You talk about the passcode not working but claim that it was "hacked" (I think that term is far too abused) while you slept. That's only possible if you left your phone with no passcode on it at all and somebody crept into your room and added one.

If the issue is a compromised account, I have provided many links to document that Apple has about dealing with this.

I am not sure what you are trying to check, and if iCloud even has anything to do with it.

This article provides country-specific Apple Support contact information for customers seeking help with their Apple ID password or other security-related issues. ➞ Contact Apple for help with Apple ID account security - Apple Support