"Do not use the Internet if it involves confidentiality, and do not use the Internet if it involves confidentiality" is a principle in computer confidentiality management. However, leaks of secrets caused by "dual use of one machine" (both processing confidential information and accessing the Internet) are still common, so necessary technical inspections are indispensable. Judging from work practice, the computers currently used for office automation in government systems are mainly microcomputers, and the operating systems used are mostly Microsoft's WINDOWS series. Considering that the basic interfaces of the WINDOWS operating systems are similar, the following uses Win 2000 as an example to introduce the preliminary computer Information checking method:

★How to check whether there is confidential information in the hard disk?

By clicking: Start-Search-Files or Folders, enter the file type to be checked (for example, DOC, TXT, etc.) in the pop-up interface "The name of the file or folder to be searched is:" .

After selecting "Local hard drive...", click "Search Now", the computer will search for files on the local hard drive based on the file type selected by the user, and list all files of this type. on the right side of the interface. Based on the file names displayed on the right, determine which files may be confidential. When you need to view its contents, double-click the file name, and the computer will automatically open the file. The examiner will browse its contents to determine whether it contains confidential information.

In addition, inspectors can view Trash and My Documents to see some of the files and documents a user has recently deleted. ★How to check whether the computer has accessed the Internet?

After the Windows operating system is installed on the computer, the system can automatically record some information during the user's use, including the creation and modification time of files and Internet access, etc. Therefore, whether a computer has accessed the Internet or what files a browser has browsed can be known through inspection. The following is a method to check whether the computer can access the Internet or when and what web pages have been browsed:

1. Check to see if the computer has a modem installed. The external modem can be seen directly in the physical form, and the internal modem can be seen as having a phone line socket on the back of the computer. If the laptop has a modem installed, there will be a socket for connecting the phone line or a modem card on one side of the laptop (a dedicated conversion line is used to connect the phone line and the modem card).

2. Check to see if the computer has a network card installed. Some areas have relatively good network infrastructure and have the conditions for broadband Internet access, so there is no need to install a modem. The check method is to check whether there is an RJ45 network cable socket on the back of the computer.

The above is a check of computer hardware. Without the above hardware, it would be impossible to access the Internet under current office conditions (the emerging wireless Internet technology requires special software, hardware, technology, and financial support) , but whether the machine has accessed the Internet requires further inspection. )3. Check if dial-up software is installed. By double-clicking: My Computer - Control Panel - Network and Dial-up Connections, check whether the dial-up software is installed or the corresponding settings have been made.

If there is a set connection, double-click the icon and the computer will automatically open the dial-up software interface. Then click "Properties", where you can see the dial-up Internet phone number and user Internet account and other information. If there is only "New Connection", it means that the computer does not have dial-up software configured now. It’s worth mentioning that configuring a dial-up software can be done in less than a minute and is very easy. Therefore some people may delete dial-up settings in advance to avoid checking.

4. Check previously viewed information. Open the browser by clicking: Start - Programs - Internet Explorer, and then click: Tools - Internet Options - Settings - View Files. The computer will display the information interface that the browser has browsed. The examiner can open a certain web page information as needed. , the method is to double-click the IE browser icon in the first column, and the computer will open the web page saved in the hard disk. This web page is a record of the user's Internet access.

Check the information that the browser has browsed or directly view the Temporary Internet Files folder. Its location is generally in "C:\Documents and Settings\Administrator\Local Settings\Temporary Internet Files".

5. If the previous step cannot find records of the Internet on your computer, you need to perform the following checks. Open the browser, click View - Browser Bar - History Factory. By clicking the icon on the left, you can view the information that your computer browser has browsed recently and see if there are any URLs or web pages on the Internet.

The above method is based on the Windows operating system's own settings, and ordinary computer users can do it, so its limitations are also obvious. If the user reinstalls the computer system or clears the above information before checking, the above method will be invalid.