You can't downgrade from a later version of iOS to an earlier version. Think about it. Let's say there's a file that some process uses, and in iOS 18 it had three bits of data in it: A,B,C. iOS 26 added a fourth bit of data: D, so now that file has: A,B,C,D. If you were able to take your iOS 26 data and feed it back into iOS 18, iOS 18 would need to know exactly what iOS 26 did to the data in order for it to remove "D". iOS 18 doesn't know about iOS 26, but iOS 26 knows about iOS 18 because it knew that in that particular file it needed to add "D" in order for that file to continue working on that app in iOS 26. iOS 18 cannot use data files from iOS 26. The only way to do what you want is to install iOS 18 and restore from an iOS 18 backup that you took from before you upgraded to iOS 26. However, that backup clearly won't have anything you've done on the phone since you upgraded to iOS 26. However, I'm not even sure Apple are signing older versions of iOS now that iOS 26 is out, meaning you may not even be able to install iOS 18 anymore.

You have two profiles on here, then? So who's gaslighting who? You have highlighted some domains listed within the output of swcutil, and assumed some nefarious folks are adding thing s to your private device. Where's the proof? What's wrong with *.events.shazam.apple.com? Apple owns Shazam. What's wrong with a service forcom.apple.FaceTimeLinkTrampoline using the domain facetime.apple.com? As I said before, you are simply misunderstanding things. If you think otherwise, why not call Apple? Why not go into a store and ask them to check your phone and see what's going on? Or, how about asking another iPhone user to show you their swcutil output and see whether the output of the logs matches? If it does, go to ten more users, then a hundred, then a thousand. If such large numbers of people are experiencing this 'hack' into their devices then Apple surely has an issue on its hands... But right now, you are misunderstanding the output of a command, that's all.

These forums aren't the place for showing off your work.

Rather than just posting in the forums about this issue - and remember, in the forums you're mainly talking to other developers like you - you should raise a bug. You can do that here: https://feedbackassistant.apple.com/ Post the FB number here when you're done.

No one is rifling through your files on iCloud. iCloud Drive uses various storage systems in the background to store your data, one of which is likely AWS. Only you have access to the files you store on iCloud Drive. Nothing you have presented here offers any shred of evidence that someone is rifling through your files. You are simply reading some logs incorrectly. You're intelligent enough to run sysdiagnose (or some rubbish AI suggested you do this), but you can't read the logs properly? Stop being so paranoid. Oh, and can you tell us the exact site where you've been contacting Apple Support so we can determine whether it's a "spoofed site" or not? And the phone number you called that got you a "Siri operator"? (Why do these forums keep attracting this sort of nonsense post?)

We'd need to see some code to see whether you've done something wrong, or at the very least a GIF showing the issue in action. If supplying code, please use the formatting tools so that the code is readable.

Have you raised a Feedback report? If not, please do so at https://feedbackassistant.apple.com/ then post the FB number here.

These are the Developer Forums, where developers of apps for Apple's platforms ask each other for hints and tips on coding. Your question is more of a product support one, so I'd suggest you ask it over at the Apple Support Forums. Thanks.

This page should help you: https://support.apple.com/en-gb/102662

Again, these are the Developer Forums, where developers of third-party apps for Apple's platforms ask each other for hints and tips on coding. If you have a suggestion, you should raise it at: https://feedbackassistant.apple.com/

These are the Developer Forums, where developers of third-party apps for Apple's platforms ask each other for hints and tips on coding. If you have a suggestion, you should raise it at: https://feedbackassistant.apple.com/ And make sure you add the specifics, as you've just said "copy this other browser", which isn't enough information.

I doubt it; that would be a massive privacy invasion. I can't see any reason why any app should be allowed to see what has been AirDropped to/from a phone in other apps. Stay in your own lane.

Not enough information to help you. What phone are you using? What version of iOS did you install? When does the phone crash? And do you mean the actual phone crashes and reboots, or do you mean apps just crash immediately when you try to launch them? Why doesn't it send messages? What happens? Any errors? No one can help you unless you provide the right information. It's like walking up to a mechanic and telling him your car won't start, but not telling him what model of car it is, where it is, what you've tried to get it to start, and into which lake you threw the keys. Besides, this isn't the place for your query. These are the Developer Forums, where developers of apps for Apple's platforms ask each other for hints and tips on coding. Your question is more of a product support one, so I'd suggest you ask it over at the Apple Support Forums. Thanks.

It's in the Distribution section of your app:

These are the Developer Forums, where developers of third-party apps for Apple's platforms ask each other for hints and tips on coding. These forums are not where Apple's actual developers chat about new features. If you have a suggestion, you should raise it at: https://feedbackassistant.apple.com/