News Column

"Mobile Data Loss Prevention System and Method Using File System Virtualization" in Patent Application Approval Process

May 6, 2014



By a News Reporter-Staff News Editor at Information Technology Newsweekly -- A patent application by the inventors LUE, Seung Tae (Seoul, KR); PAEK, Seung Tae (Seoul, KR); CHOI, Il Hoon (Seoul, KR), filed on October 10, 2013, was made available online on April 24, 2014, according to news reporting originating from Washington, D.C., by VerticalNews correspondents.

This patent application is assigned to Somansa Co., Ltd.

The following quote was obtained by the news editors from the background information supplied by the inventors: "Recently, cases that use smartphones for work are increasing in large companies, security companies, insurance companies, etc. At present, smart office and smart work are being done, and thus, a smartphone user accesses a company network to view company information anywhere at any time.

"Such smart office and smart work increase an efficiency of work, but when a worker accesses a company network with a smartphone, the risk of leaking company information increases.

"Further, most of company information is important information, and there is a high possibility that the company information is core information. For this reason, it is urgently required to apply a DLP measure to a mobile environment which is used for work.

"In addition, the government is recently controlling the protection and management of personal information with the information communication network act and the personal information protection act, and thus, a measure against data loss is needed for an open space in addition to a closed space such as a company."

In addition to the background information obtained for this patent application, VerticalNews journalists also obtained the inventors' summary information for this patent application: "Accordingly, the present invention provides a mobile DLP system and method using file system virtualization, which is used in a security mode by virtualizing a physical disk area.

"The object of the present invention is not limited to the aforesaid, but other objects not described herein will be clearly understood by those skilled in the art from descriptions below.

"In one general aspect, a mobile DLP system includes: a general storage configured to allow an access in a normal mode and a security mode; an encrypted virtual storage configured to disallow an access in the normal mode, and allow an access in the security mode; a management program configured to designate the general storage as a write or read area in the normal mode, and designate the general storage and the virtual storage as the write or read area in the security mode; a fuse configured to intercept a file input or output of an application program including the management program to again set a file input or output path as the virtual storage according to a command of the management program, in the security mode; and a VFS engine configured to perform a bridge function between the application program of an application layer and the fuse of a kernel layer.

"In another general aspect, a file copy method of a mobile DLP system, including a general storage configured to allow an access in a normal mode and a security mode and an encrypted virtual storage configured to disallow an access in the normal mode and allow an access in the security mode, includes: when copy work is requested for copy from the virtual storage to the general storage, requesting, by an application program including a management program, authentication from a user requesting the copy work in the security mode; when the user is authenticated, analyzing a copy target file corresponding to the copy work, and transmitting the analyzed contents to request approval of the copy work; and when a notification indicating approval of an officer for the copy work is received from a server, copying the copy target file of the virtual storage to the general storage.

"Other features and aspects will be apparent from the following detailed description, the drawings, and the claims.

BRIEF DESCRIPTION OF THE DRAWINGS

"FIG. 1 is a block diagram illustrating a mobile DLP system and a security mode data flow thereof according to an embodiment of the present invention.

"FIG. 2 is a block diagram illustrating a contents analysis subsystem according to an embodiment of the present invention.

"FIG. 3 is a flowchart for describing a file copy function performed by a management program or the contents analysis subsystem according to an embodiment of the present invention."

URL and more information on this patent application, see: LUE, Seung Tae; PAEK, Seung Tae; CHOI, Il Hoon. Mobile Data Loss Prevention System and Method Using File System Virtualization. Filed October 10, 2013 and posted April 24, 2014. Patent URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&u=%2Fnetahtml%2FPTO%2Fsearch-adv.html&r=525&p=11&f=G&l=50&d=PG01&S1=20140417.PD.&OS=PD/20140417&RS=PD/20140417

Keywords for this news article include: Somansa Co. Ltd, Information Technology, Information and Data Loss and Recovery.

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Source: Information Technology Newsweekly