Firewall, IDS, internal and external network proof, as well as other access control system focusing on external network can effectively prevent external attacks, but it is always rare to say an effective solution to prevent internal information from being released. The confidentialities stored in the computer can be very easily stolen by the internal employees by means of internet, storage equipment (including USB flash disk, SD card, portable hard disk and smart phone etc), printing, etc. Once this sensitive information, important data and designing paper are delivered to enemies or competitors, it will bring an unexpected loss to the state or enterprise. So, it is very important for state organ and research departments of some sensitive subjects to take some measures to protect the confidential information. Though, at present, the government has made lots of related regulations about this, including clearly order the computers of some companies or units should be securely protected, it still cannot meet the requirements. So, except these traditional administrative managements, we must utilize some technical methodologies.

　　 A survey from American CSI/FBI, more than 80% of the security threats of the enterprises and governments come from the internal information releasing. The investigation result from National Information Security Testing Evaluation and CertificationCenter (of China) also shows that the information security problem comes from disclosure and crime commitment of the internal staff, rather than virus and hackers attack.

　　 How to protect the enterprises' information asset and how to prevent employees from committing crime, as well as how to get evidence once confidential information is released have become an important part of today’s information security building.

　　 Focusing on these new security problems, Shanghai Eff-Soft have developed USB Security Storage Expert(USSE). We are aiming at providing information security management services of USB port for small and medium enterprises, so as to make the USB port no longer the worries of the information security. Combined with other network monitoring programs, users can construct a very safe enterprise data management environment .