Sensor Information Control Unit for Mobile Device Privacy

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Solution Overview

Problem

Mobile communication devices are vulnerable to malicious applications that can access sensitive information collected by sensors, such as accelerometers and gyroscopes, allowing cybercriminals to infer passwords and compromise user privacy.

Innovation Solution

Implementing a Sensor Information Control Unit to manage and control access to sensor information, intercepting requests from applications and enforcing access rules to restrict unauthorized access, especially for sensitive user input actions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If sensor information is made freely accessible to applications, then application functionality and ease of operation are improved, but user privacy and security are compromised

Engineering Contradiction:
Improveapplication functionalityVSAvoidprivacy breach
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent introduces a sensor information control unit as an intermediary component that sits between the sensors and applications. This control unit intercepts, validates, and manages all requests for sensor information, allowing legitimate applications to access needed data while blocking malicious applications from obtaining sensitive information that could be used to infer passwords or personal data.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If all applications can access sensor data, then device versatility is improved, but security against malicious applications deteriorates

Engineering Contradiction:
Improvedevice versatilityVSAvoidsecurity
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent implements local quality by applying different access control rules to different applications and different sensor information types. The control unit validates each request individually, granting access only to specific applications for specific sensor data based on predefined security policies, thereby maintaining device versatility while ensuring security through differentiated access control.

Inventive Principle:
Principle #3Local quality

3Ease of operation

If sensor access is unrestricted, then ease of operation is improved, but loss of information control increases

Engineering Contradiction:
Improveaccess convenienceVSAvoidinformation control
Core Design Contradiction:
Ease of operationVSLoss of information

Solution Approach 1:

The patent applies preliminary action by establishing security policies and validation rules in advance before any sensor information is accessed. The control unit is pre-configured with rules that determine which applications can access which sensor data under what conditions, allowing the system to automatically enforce information control without requiring real-time user intervention or complex runtime decisions.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS9424409B2Method and system for protecting privacy and enhancing security on an electronic device
Publication Date: 2016.08.23 LOOKOUT INC
  • US9424409B2 patent drawing
  • US9424409B2 patent drawing
  • US9424409B2 patent drawing

AI summary

A method for protecting privacy and enhancing security on an electronic device is provided. When sensor information associated with at least one user input action is collected by a sensor in an electronic device hosting a plurality of applications, the method includes intercepting a request to access the sensor information from a requesting application of the plurality of applications, and controlling access to the sensor information associated with the at least one user input action based on the requesting application. By controlling access to the sensor information, leakage of sensitive or secure information to a malicious background application is minimized and privacy and security are enhanced.