Printing Interruption Module for Real-Time Personal Data Leakage Prevention
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Solution Overview
Problem
Existing systems for printed matter security cannot interrupt the printing of documents containing personal information in real time, only allowing for post-verification, which fails to prevent the initial leakage of such information.
Innovation Solution
A system and method that include a terminal and security server, which receive policy and pattern information for personal data, insert a printing interruption module to monitor and verify printing requests, and perform information protection functions based on policy settings, preventing the printing of personal information in real time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If post-verification of stored copy is performed, then verification capability is provided, but real-time prevention capability is lost
Solution Approach 1:
The patent inserts a printing interruption module into the monitoring application program before printing occurs. This module proactively monitors printing requests, verifies content for personal information using pattern matching, and interrupts printing before it starts if sensitive data is detected, thereby achieving real-time prevention rather than post-verification
Solution Approach 2:
The patent introduces a printing interruption module as an intermediary component between the monitoring application program and the printing system. This module acts as a mediator that intercepts printing requests, performs verification using pattern information, and controls whether printing proceeds, enabling real-time verification and prevention capability
2Reliability
If printing interruption module is inserted in monitoring application program, then real-time verification is achieved, but system complexity increases
Solution Approach 1:
The patent merges the printing interruption module with the existing monitoring application program by inserting it into the program's execution flow. Rather than creating a completely separate verification system, the module is integrated into the existing application structure, reducing overall system complexity while achieving real-time verification
Solution Approach 2:
The printing interruption module performs multiple functions: it monitors printing requests, verifies content using pattern information, and controls printing execution. By consolidating these functions into a single modular component that can be inserted into existing applications, the system achieves real-time verification without proportionally increasing complexity
Data Source
AI summary
Disclosed are a system and a method for printed matter security. A method for printed matter security according to an exemplary embodiment of the present invention includes: receiving policy information, information of a monitoring application program, and pattern information of personal information from a security server; inserting a printing interruption module in the monitoring application program when the monitoring application program corresponding to the information of the application program is executed; storing a content of a printing request by interrupting the printing request of the monitoring application program by the printing interruption module; verifying whether the personal information is included in the content of the printing request, using the pattern information; and performing an information protection function corresponding to the policy information when the personal information is included in the content of the printing request.