Permanently deleting messages from iCloud requires a few steps to ensure that the messages are removed from all devices and are not recoverable. Here are the steps you can follow to permanently delete messages from iCloud:

- Turn off iCloud syncing for Messages
Before deleting messages from iCloud, you need to turn off iCloud syncing for Messages. This will prevent the messages from being synced to other devices and being recovered after deletion. To turn off iCloud syncing for Messages:
- On your iPhone or iPad, go to Settings > [Your Name] > iCloud.
- Turn off the switch for Messages.
- Delete messages from your device
After turning off iCloud syncing for Messages, you can delete the messages from your device. To delete messages from your device:
- Open the Messages app on your iPhone or iPad.
- Swipe left on the conversation that you want to delete.
- Tap “Delete” to remove the conversation from your device.
Note that this will only delete the messages from your device and not from iCloud.
- Sign in to iCloud.com
After deleting the messages from your device, you need to sign in to iCloud.com to delete them from iCloud. To sign in to iCloud.com:
- Open a web browser on your computer or mobile device.
- Go to iCloud.com and sign in with your Apple ID and password.
- Open the Messages app in iCloud
After signing in to iCloud.com, open the Messages app to view your messages in iCloud. To open the Messages app:
- Click on the “Messages” icon in the iCloud home screen.
- Delete messages from iCloud
Once you are in the Messages app in iCloud, you can select and delete messages that you want to remove permanently. To delete messages from iCloud:
- Select the conversation that you want to delete by clicking on it.
- Click on the gear icon in the upper-left corner of the window.
- Click on “Delete Conversation” from the drop-down menu.
- Confirm that you want to delete the conversation by clicking “Delete” in the pop-up window.
Note that deleting a conversation from iCloud will also delete it from all devices that are signed in with your Apple ID and have iCloud syncing for Messages turned on.
- Empty the Recently Deleted folder
After deleting messages from iCloud, they will be moved to the Recently Deleted folder, where they will be permanently deleted after 30 days. However, to ensure that the messages are deleted permanently, you can empty the Recently Deleted folder. To empty the Recently Deleted folder:
- In the Messages app in iCloud, click on “Recently Deleted” in the left sidebar.
- Select the conversation that you want to permanently delete by clicking on it.
- Click on “Delete All” in the upper-right corner of the window.
- Confirm that you want to permanently delete the conversation by clicking “Delete” in the pop-up window.
Once you have emptied the Recently Deleted folder, the messages will be permanently deleted from iCloud and will not be recoverable.
In conclusion, permanently deleting messages from iCloud requires turning off iCloud syncing for Messages, deleting messages from your device, signing in to iCloud.com, deleting messages from iCloud, and emptying the Recently Deleted folder. By following these steps, you can ensure that the messages are removed from all devices and are not recoverable. However, it’s important to note that once the messages are deleted, they cannot be recovered, so make sure to back up any important messages before deleting them.