Mobile Data Tagging for Secure Transmission

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Solution Overview

Problem

Corporate data leakage occurs when employees use personal mobile communication devices for both corporate and personal activities, as existing systems lack effective mechanisms to restrict the transmission of corporate data over insecure channels.

Innovation Solution

Implementing a data tagging system on mobile communication devices that associates corporate data with a service identifier, restricting transmission to secure corporate channels only, and prompting users to select secure services for data sharing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If employees use a single mobile device for both corporate and personal communication, then device utilization efficiency is improved, but corporate data security deteriorates

Engineering Contradiction:
Improvedevice utilization efficiencyVSAvoidcorporate data security
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The system segments data into corporate and personal categories by tagging data with service identifiers. Corporate data received through corporate services or created by corporate applications is automatically tagged, allowing the device to handle both corporate and personal communication while maintaining security through identification and restriction of corporate data transmission channels.

Inventive Principle:
Principle #1Segmentation

2Object-affected harmful factors

If corporate data transmission is restricted to secure channels only, then data security is improved, but transmission flexibility deteriorates

Engineering Contradiction:
Improvedata securityVSAvoidtransmission flexibility
Core Design Contradiction:
Object-affected harmful factorsVSAdaptability or versatility

Solution Approach 1:

The system dynamically determines transmission restrictions based on the service identifier associated with each data item. When a user attempts to transmit tagged data, the system checks whether the target service is authorized for that data type and adjusts transmission permissions in real-time, allowing flexible yet secure data sharing across different services.

Inventive Principle:
Principle #15Dynamics

3Measurement precision

If automatic tagging of corporate data is implemented, then data identification accuracy is improved, but system complexity deteriorates

Engineering Contradiction:
Improvedata identification accuracyVSAvoidsystem complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The system performs preliminary tagging of corporate data at the point of receipt or creation by automatically associating service identifiers with data items. This preliminary classification eliminates the need for manual identification later and enables automatic enforcement of transmission restrictions, maintaining high identification accuracy while managing complexity through automation.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP2448213B1Restrictions to data transmission
Publication Date: 2019.02.20 BLACKBERRY LTD
  • EP2448213B1 patent drawingFigure 1
  • EP2448213B1 patent drawingFigure 2A~2B
  • EP2448213B1 patent drawingFigure 3

AI summary

Data received at, or created on, a device may be tagged as corporate dependent upon a service over which the data is received or an application in which the data is created. When a user attempts to insert tagged data into a data item that is to be transmitted by the device, the insertion may be prevented. Similarly, the transmission of tagged data may be restricted to only occur on a secure service.