What to know

  • Your iPhone will show the “iPhone was used from Mac” message when it’s been used for mirroring on a Mac. The feature has been introduced in the iOS 18 and macOS 10.15 Sequoia updates.
  • Since iPhone mirroring can only take place when the iPhone is locked, you will see the toast message when your iPhone has been disconnected from iPhone Mirroring. 
  • If you didn’t mirror your iPhone but you see this toast message, it’s highly likely that it was mirrored on someone else’s Mac on the sly.  

Apple has finally introduced iPhone Mirroring – the feature that lets you mirror and control your iPhone from your Mac. iPhone Mirroring is great, and it’s been one of the main headline features on iOS 18 and macOS 10.15 Sequoia. But it also comes with security issues that need to be taken into account.

Because there’s always a possibility that your iPhone could be mirrored on someone else’s Mac, your iPhone displays a toast message telling you that it was used from Mac.

iPhone can only be mirrored when it is locked. So if you’re using your iPhone, you can be sure that it’s not being mirrored anywhere. But what about when it’s locked? 

This is where the ‘iPhone was used from Mac’ message is important. Not only does it ensure you’re notified in case someone else mirrors your iPhone, it also comes in handy in case your mirroring connection goes down. If you’d been mirroring your iPhone and you see that message, you can be sure that the connection is now lost.