How to turn of Automatic authentication for iPhone Mirroring on my iMac?

With the iPhone mirroring app opened, on the Mac click the iPhone Mirroring menu at the top, then on Settings, then check "Ask Every Time"

I'm confused. The app's Automatic authentication option on a Mac has no bearing on your iPhone's lock screen time out. Those are separate things.

If you iPhone is locking immediately, then go to the iPhone Settings and change the timeout in Settings ➜ Face ID & Passcode ➜ Require Passcode, try something other than "Not Immediately".

Do note, On iOS 18, if you have Apple Pay enabled, or Face ID turned on, it will no longer have any other options besides "require immediately". But again this is not directly tied to the Mirroring App on the Mac at all.

I have the same issue but it's a little bit trickier. I was in a different country when I updated my mac last so I set up IPhone mirroring on there and also want to change this setting of automatically authenticating because I have to type in my password on my lockscreen every time the screensaver comes on. Sadly iPhone mirroring is not supported in my home country yet (I didnt know this) and therefore I cannot open the app and change the settings. Help please

If you can't open the app, then it's fairly irrelevant whether it set to authenticate automatically or not. You can't use it, so authentication doesn't even apply/

If you are in the EU, then you will need to wait until it is allowed to work there to change it.

Dear Phil,

it is in fact very relevant since it’s annoying af having to put in my password every single time my Lock Screen comes on haha so my only solution is to wait until this is available in Europe or leave Europe again?

No not my iPhone Lock Screen but my Mac book screen saver. Whenever this is coming on it immediately required my password which is frankly quite annoying. The setting to turn this off is blocked because of the iPhone screens mirroring application which I cannot open because it’s not available in my current location (which is different from the location I last updated my MacBook) that’s the problem…

No, you seem to be very confused. The mirroring app has no relation to your Mac's Lock Screen. There mirroring app only applies to the iPhone.

The option to change the Mac's timeout, is in System Settings ➜ Lock Screen. That has no ties to the mirroring app.

Its ok if you cannot help but maybe I can help with your confusion, here's a screenshot: