Managed Lost Mode and remote wipe
Managed Lost Mode is used to locate supervised devices when they are stolen. After they are located, they can be remotely locked or erased.
Managed Lost Mode
If a supervised iOS or iPadOS device with iOS 9 or later is lost or stolen, a mobile device management (MDM) administrator can remotely enable Lost Mode (called Managed Lost Mode) on that device. When Managed Lost Mode is enabled, the current user is logged out and the device can’t be unlocked. The screen displays a message that can be customized by the administrator, such as displaying a phone number to call if the device is found. The administrator can also request the device to send its current location (even if Location Services are off) and, optionally, play a sound. When an administrator turns off Managed Lost Mode, which is the only way the mode can be exited, the user is informed of this action through a message on the Lock Screen or an alert on the Home Screen.
iOS, iPadOS, and macOS devices can be erased remotely by an administrator or user (instant remote wipe is available only if the Mac has FileVault enabled). Instant remote wipe is achieved by securely discarding the media key from Effaceable Storage, rendering all data unreadable. For remote wipe through Microsoft Exchange ActiveSync, the device checks in with the Microsoft Exchange Server before performing the wipe.
When a remote wipe command is triggered by MDM or iCloud, the iPhone, iPad, iPod touch, or Mac device sends an acknowledgment back to the MDM solution and performs the wipe.
Remote wipe isn’t possible in the following situations:
With User Enrollment
Using Microsoft Exchange ActiveSync when the account that was installed with User Enrollment
Using Microsoft Exchange ActiveSync if the device is supervised
Users can also wipe iOS and iPadOS devices in their possession using the Settings app. And as mentioned, iOS and iPadOS devices can be set to automatically wipe after a series of failed passcode attempts.