Terminal equipment against data theft

Abstract

A terminal device with a data interception prevention function comprises a main power supply, a reserve power supply, a self-destruction circuit, a target chip and a main controller, and the main controller is provided with a self-destruction trigger identification port, wherein the main power supply is coupled with the main controller and is used for supplying power to the main controller; the reserve power supply is used for supplying power to the self-destruction circuit when the self-destruction circuit is triggered; the input end of the self-destruction circuit is coupled with the reservepower supply, the output end of the self-destruction circuit is coupled with the self-destruction trigger identification port, and the self-destruction circuit is used for generating a self-destruction signal when triggered and inputting the self-destruction signal to the self-destruction trigger identification port; the main controller is coupled with the target chip and used for generating a self-destruction control instruction when the self-destruction signal is input to the self-destruction trigger identification port and sending the self-destruction control instruction to the target chipso as to control the target chip to execute self-destruction operation. According to the technical scheme, the protective performance of the terminal device can be effectively improved, and the datainterception risk can be reduced.

Description

technical field [0001] The invention relates to the field of information security, in particular to a terminal device for preventing data theft. Background technique [0002] Today, when information and data are widely used, some important data are usually stored in the memory chip of the terminal device, such as the user's personal privacy data, business secrets, even government agency documents, military industry secrets and other information. If the terminal device is lost or stolen, these important data may be stolen. [0003] In order to prevent the data in the terminal device from being stolen, security software such as anti-theft is installed in the terminal device, or a complicated system password is set in the terminal device. However, the above method can only prevent a stealer from stealing data through the peripheral interface of the terminal device. Stealers can physically disassemble the terminal equipment, take out the memory chip from it and perform physica...

AI Technical Summary

Problems solved by technology

However, when the terminal equipment is lost, the stealer may destroy the power supply in a targeted manner.

Even if there is a self-destruct circuit in the terminal equipment, the self-destruct circuit will not work properly because there is no power supply

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