Patent ID: 8811949

Claim:
An anti-theft mobile terminal, comprising: a battery, a setting unit, an encryption module, a password verification module, a detection module, a power management module, an information return module, an information deleting module and a positioning module; wherein the setting unit is configured to set an International Mobile Subscriber Identity (IMSI) for the mobile terminal; the encryption module is configured to set a screen-lock password and an information return verification password of the mobile terminal; the password verification module is configured to verify a screen-unlock password input by a user, and unlock a screen after successful verification; the detection module is configured to detect a battery or a Subscriber Identity Module (SIM) card of the mobile terminal, and trigger the power management module to manage a power supply when detecting that the SIM card has been pulled out, the battery has been pulled out, or the battery has run down longer than a preset duration; the power management module is configured to stop a power supply function of the battery of the mobile terminal and start a standby power supply to supply power to the information return module, the information deleting module, the positioning module, and the IMSI; the information return module is configured to receive an information return verification password from another mobile terminal, verify the information return verification password, and return information saved in a set storage area in the mobile terminal to the another terminal after successful verification; the information deleting module is configured to delete information having been returned by the information return module from the set storage area; and the positioning module is configured to position the mobile terminal, and periodically transmit positioning information to a network side or a specified mobile terminal; wherein the password verification module is configured to trigger the power management module to manage the power supply when the number of verification attempts exceeds a preset threshold, and is started after the mobile terminal is restarted or powered on again.