Three-Tier Fraud Detection for Geographically Targeted Network Access

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Solution Overview

Problem

Conventional fraud detection systems are inefficient in identifying and responding to complex and sophisticated fraudulent network access efforts, particularly those targeted at specific geographic areas, due to a lack of geographical sensitivity and slow response times.

Innovation Solution

A three-tiered network architecture comprising user equipment devices, local authority controllers, and master authority controllers, with integrated artificial intelligence systems, to analyze and respond to potentially fraudulent transactions by applying localized and centralized knowledge bases for rapid detection and response.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If conventional fraud detection systems are used, then basic fraudulent activity can be detected, but geographically targeted and sophisticated fraudulent activities cannot be effectively detected due to lack of geographical sensitivity

Engineering Contradiction:

Improvedetection precisionVSAvoidgeographical adaptability

Core Design Contradiction:

Measurement precisionVSAdaptability or versatility

Solution Approach 1:

The system divides the fraud detection function into multiple tiers: local authority controllers handle geographically specific fraud patterns at the local level, while master authority controllers handle broader patterns at the central level. This segmentation allows the system to simultaneously maintain geographical sensitivity for localized fraud and comprehensive detection capability for widespread fraud schemes.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Each local authority controller is configured with geographical knowledge specific to its region, enabling it to detect fraud patterns that are characteristic of that particular area. This local quality ensures that detection precision is optimized for geographically targeted fraudulent activities while maintaining overall system versatility.

Inventive Principle:

Principle #3Local quality

2Reliability

If centralized fraud detection systems are used, then comprehensive fraud patterns can be detected, but response time is slow due to centralized processing delays

Engineering Contradiction:

Improvedetection reliabilityVSAvoidresponse speed

Core Design Contradiction:

ReliabilityVSSpeed

Solution Approach 1:

The system segments authority and decision-making power across multiple levels. Local authority controllers can independently detect and respond to fraudulent activities in their respective regions without waiting for centralized approval, thereby maintaining fast response times. Simultaneously, master authority controllers provide overarching supervision and coordination, ensuring comprehensive detection reliability.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Local authority controllers are pre-configured with geographical knowledge and fraud detection capabilities specific to their regions. This preliminary preparation enables them to immediately detect and respond to fraudulent activities without delays associated with centralized processing, while still operating within the broader framework of the centralized system.

Inventive Principle:

Principle #10Preliminary action

3Ease of manufacture

If one-size-fits-all fraud detection approaches are used, then implementation is simple, but effectiveness varies across different geographic areas due to localized differences in fraudulent activity

Engineering Contradiction:

Improvesystem implementation easeVSAvoiddetection effectiveness

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The system segments the fraud detection approach into standardized components that can be replicated across different regions, while allowing each local authority controller to be configured with region-specific parameters. This segmentation maintains ease of implementation through modular design while achieving localized effectiveness through configurable adaptations.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The multi-tiered architecture provides a universal framework that can be deployed across diverse geographic areas. Each layer of the hierarchy (local and master authority controllers) performs multiple functions including detection, analysis, and response coordination, enabling the system to adapt to different regional fraud patterns while maintaining consistent operational standards.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS20250365321A1Multi-tiered system for detecting and reducing unauthorized network access

Publication Date: 2025.11.27 WELLS FARGO BANK NA

AI summary

Embodiments are disclosed for detecting and responding to potentially fraudulent transactions and other network access events via a system comprising a three-tiered network architecture. An example system comprises one or more user equipment devices configured with a thin client application (a first tier). The one or more user equipment devices are capable of communicating with a respective local authority controller and a local knowledge base (the second tier). The one or more local authority controllers and local knowledge bases are configured to interact with a master authority controller and master knowledge base (the third tier) to enable the efficient assessment of potentially localized fraudulent network activity and the passing of network access rule sets amongst the devices in each tier. Corresponding apparatuses and methods are also provided.