gcdRadar
closedclosed 11 Oct 2026Breaches & attacks4 Confirmed real-world lossAI

Attackers Used ARTEX AI Tool to Breach South Korean Financial Firms

ARTEX

Threat actors utilized the ARTEX AI security-testing tool and large language models to breach South Korean financial institutions and steal data. Compromised systems included loan-broker inquiries and employee mobile work-support systems.

why this severityConfirmed real-world data theft at financial institutions.

first report
27 Sep 2026
last update
27 Sep 2026

Timeline · 1

  1. 27 Sep 2026Attackers Reportedly Used ARTEX, an AI Security-Testing Tool, to Steal Data from South Korean Financial Institutions

Sources · 1

Research and catalogues

  1. 2026-09-27

Titles and links belong to their publishers. The summary above is written by gcdRadar in its own words; data is CC BY-SA 4.0.

Classification

AI role
AI-enabled attack
categories
AI-assisted intrusion
severity
4 · Confirmed real-world loss
targets
Enterprise deployment
owasp llm top 10
no entry for these categories
mitre atlas
no technique for these categories
dates
happened 27 Sep 2026 · first reported 27 Sep 2026
origin
AI Incident Database
Derived from the AI Incident Database (CC BY-SA 4.0).
record
confidence 0.90 · created 2026-10-30 13:27Z · updated 2026-10-30 13:27Z

Lane, AI role, categories and severity come from the classifier; the OWASP and ATLAS rows are derived from the categories. How these are assigned

Copy a brief

This record as a short Markdown brief, for a ticket, a chat or a coding agent.

the brief as text
# Attackers Used ARTEX AI Tool to Breach South Korean Financial Firms

https://gcdradar.vercel.app/incidents/attackers-used-artex-ai-tool-to-breach-south-korean-financia · AIR-2026-1662 · closed 2026-10-11

- Lane: Breaches & attacks
- Severity: 4 (Confirmed real-world loss): Confirmed real-world data theft at financial institutions.
- Fix status: No fix needed
- First reported: 2026-09-27
- AI role: AI-enabled attack
- Products: ARTEX

## Summary

Threat actors utilized the ARTEX AI security-testing tool and large language models to breach South Korean financial institutions and steal data. Compromised systems included loan-broker inquiries and employee mobile work-support systems.

## What to do

No action recorded; read the sources below and the vendor's advisory.

## Latest updates

- 2026-09-27: Attackers Reportedly Used ARTEX, an AI Security-Testing Tool, to Steal Data from South Korean Financial Institutions (https://incidentdatabase.ai/cite/1782)

## Sources

- 2026-09-27 AI Incident Database: Attackers Reportedly Used ARTEX, an AI Security-Testing Tool, to Steal Data from South Korean Financial Institutions https://incidentdatabase.ai/cite/1782

Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.

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