Heh heh heh.
iCloud Security
iCloud is a moderately secure mechanism for protecting iDevices. To remove iCloud cleanly use a reliable provider that interfaces with Apple's GSX service, removing the IMEI from the iCloud database. Those with a hackers mindset can use Checkra1n jailbreak using Checkm8, to remove iCloud / FMI cleanly from iPhones 6S - X on iOS 12 - 17.