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I have very sensitive company documents that I have to work with on a daily basis. It is critical that these documents not be accessible by others (mainly competitors).
The documents are created, maintained, and stored on a secure, never online Linux machine. However, a couple of times a week, the documents are transferred via USB to a Windows machine for printing (complex printing that I cannot figure out how to do without going through a Windows machine such as engineering drawings and plotting). This Windows machine occasionally connects to the internet to keep an installation of Kaspersky up to date with the latest virus information, but is otherwise offline. It is never used for any purpose other than printing and presenting on a projector. It is never used for downloading, browsing, or any other risky activities. The computer is NEVER online when any sensitive documents or USBs are attached, and the sensitive documents are never transferred onto the computer from the USB (unless it's done in the background without my knowledge). They always stay on the USB.
Are there any security lapses in the setup above? I am worried about the following: Does Windows automatically store local copies of files from USBs? If it does, is there any way for these to be accessed by other people when the computer is connected to the web? Does anyone have any recommendations?
Thank-you
The documents are created, maintained, and stored on a secure, never online Linux machine. However, a couple of times a week, the documents are transferred via USB to a Windows machine for printing (complex printing that I cannot figure out how to do without going through a Windows machine such as engineering drawings and plotting). This Windows machine occasionally connects to the internet to keep an installation of Kaspersky up to date with the latest virus information, but is otherwise offline. It is never used for any purpose other than printing and presenting on a projector. It is never used for downloading, browsing, or any other risky activities. The computer is NEVER online when any sensitive documents or USBs are attached, and the sensitive documents are never transferred onto the computer from the USB (unless it's done in the background without my knowledge). They always stay on the USB.
Are there any security lapses in the setup above? I am worried about the following: Does Windows automatically store local copies of files from USBs? If it does, is there any way for these to be accessed by other people when the computer is connected to the web? Does anyone have any recommendations?
Thank-you