Information protection method and device

The embodiment of the invention provides an information protection method and device and relates to the technical field of information security. The information protection method and device can guarantee the security of user personal information stored in a terminal without influencing the service functions of an APP. The method comprises the steps that a service instruction sent by the APP is obtained, wherein the service instruction comprises pseudo identifiers of operation objects, and the pseudo identifiers are in one-to-one correspondence with sensitivity identifiers of the operation objects; the sensitivity identifiers of the operation objects are obtained according to the pseudo identifiers, and service operation indicated by the service instruction is executed on the operation objects according to the sensitivity identifiers. The method is used for protecting the personal information stored in the terminal.