Woori Bank Takes Proactive Measures Against Sophisticated Financial Incidents Using AI Technology

Woori Bank Begins AI-Based Upgrade
of Fraud Detection System (FDS)

On May 27, Woori Bank announced that it has begun upgrading its 'Fraud Detection System (FDS)' by applying AI technology, with the aim of preventing potential financial incidents and innovating the group's internal control system.

Currently, Woori Bank operates a scenario-based 'Fraud Detection System' to prevent incidents of the same type that have occurred in the past. Since the system was launched in February, the bank has monitored loan transactions and detected approximately 200 suspicious cases based on dozens of incident prevention scenarios, such as false annual income reporting.

When suspicious financial transactions are detected, dedicated staff immediately begin investigations, establishing a real-time response system that has proven effective in preventing financial incidents.

This upgrade is a proactive measure to address increasingly sophisticated and complex financial incidents, with the goal of launching the enhanced system in the first half of 2026. In particular, the bank is focusing on introducing behavioral pattern analysis techniques using AI technology, aiming to expand the detection scope and improve precision through ongoing consulting.

The main areas of consulting include: △Designing an advanced AI-based FDS △Analyzing data for suspicious transaction detection and introducing new technologies △Designing a suspicious transaction detection system for headquarters departments. Through these efforts, Woori Bank plans to build an optimized 'Fraud Detection System' capable of generating scenarios and extracting precise data based on financial data analysis.

A Woori Bank representative stated, "By upgrading our inspection system with AI technology, we will automatically analyze vast amounts of financial data and proactively predict potential suspicious financial transactions, thereby establishing a preemptive inspection system." The representative added, "We will continue to actively adopt digital technologies across all inspection operations to drive ongoing innovation in internal controls."