In general, mobile terminals are a concept including mobile communication terminals, payment terminals, and various computers and tablet PCs for inputting and processing data.
In the following description, for convenience of explanation, a payment terminal is mainly discussed.
The payment terminal includes a central processing unit for processing input data and various types of memories for storing data.
Important information that is necessary to protect from being leaked to the outside may be processed by or stored in the central processing unit and the memory.
In the payment terminal, it is very important to prevent leakage of important data related to security stored in relation with card payments, personal authentication, personal information, and company secrets.
In other words, when a user who is not security-approved accesses a mobile terminal where important data is stored by opening a casing in order to leak the data to the outside, a serious security breach may occur.
To address the above problem, in the payment terminal according to a related art, when the casing of the payment terminal storing important data is opened, an anti-tampering protection member which may deny access to the important data is provided.
However, in the mobile terminal according to a related art, accessing to the important data may be denied only when the casing is opened. It is a demerit that, when opening the casing is tried, such a try may not be detected.