MDM, or Mobile Device Management, is a security feature that allows organizations to manage and control their employees' mobile devices remotely. In general, MDM cannot be permanently removed since it is a core part of the device's security architecture that is designed to prevent unauthorized access and data leakage. However, there are some ways to bypass or remove MDM, such as using jailbreak or rooting tools, but doing so usually involves violating the device's warranty and may compromise its security. It is not recommended to remove MDM without proper authorization or permission from the device owner or organization. In case of lost or stolen devices, MDM can be disabled remotely using the relevant management tools provided by the organization or mobile carrier.