User data protection method and mobile terminal

The invention discloses a user data protection method and a mobile terminal. The method comprises the steps that a target mobile terminal receives request information sent by a first mobile terminal;when a character string in the request information comprises a preset PIN code, the target mobile terminal obtains a pre-stored locking instruction correlated to the request information; and the target mobile terminal performs the locking instruction to lock an SIM card in the target mobile terminal. According to the method and the mobile terminal, after a user loses the mobile terminal, user datain the mobile terminal can be protected, and the user data is prevented from being leaked. Further, the user also can retrieve the mobile terminal through the protected user data, thereby preventingproperty loss. 本发明公开了种用户数据的保护方法和移动终端，所述方法包括：目标移动终端接收由第移动终端发送的请求信息；当所述请求信息中的字符串包括预设的PIN码时，所述目标移动终端获取预先存储的与所述请求信息关联的锁定指令；目标移动终端执行所述锁定指令对所述目标移动终端内的SIM卡进行锁定。本发明在用户丢失移动终端后，可以对该移动终端内的用户数据进行保护，避免用户数据泄露。更进步，用户还可以通过这些被保护的用户数据寻回该移动终端，避免财