Monitoring method, device and system for file

Abstract

The invention discloses a monitoring method, device and system for a file. The monitoring method, device and system are used for solving the problem that in the prior art, because the monitoring granularity is coarse, constraint on the file is excessively tight, or a sensitive file is high in disclosure risk. According to the method, all feature words contained in the file and sensitive word banks where all the feature words are located are determined, the sensitive grade of the file is determined according to a preset sensitive degree weight value corresponding to each sensitive word bank and the emerging frequency of all the feature words in the file, and the file is monitored according to the sensitive grade of the file. According to the method, whether one file is a sensitive file or not can be judged, besides, the sensitive grade of the file can be determined, and the file is monitored according to the determined sensitive grade. In this way, fine granularity monitoring is performed on the file, the sensitive file is prevented from being constrained excessively tightly, moreover, by the adoption of the method, a user does not need to judge whether the file is the sensitive file or not, and therefore the disclosure risk of the sensitive file is lowered.

Description

technical field [0001] The present application relates to the field of communication technology, and in particular to a file monitoring method, device and system. Background technique [0002] The development of electronic information technology has brought great convenience to corporate offices and greatly improved work efficiency, but at the same time it has also increased the risk of leakage of important documents. Many organizations (such as government, enterprise, military, etc.) have a large number of sensitive documents that cannot be leaked to the outside. However, staff inside the organization may leak sensitive documents intentionally or unintentionally. [0003] In the prior art, the following two methods are mainly adopted to avoid leakage of sensitive files: [0004] The first is to save sensitive words in the system in advance, and for the stored files, judge whether there are preset sensitive words in the file, if so, determine that the file is a sensitive fi...

AI Technical Summary

Problems solved by technology

[0007] Embodiments of the present invention provide a file monitoring method, device, and system to solve the problems in the prior art that the constraints on files are too tight or sensitive files are at a high risk of leakage due to the coarse monitoring granularity

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