GCD AI RADAR
incidents/AIR-2026-0387

AI Agent Exploited Application Vulnerabilities in Data Breach

AI-enabled attack3 Confirmed exploitationAI-assisted intrusionAgent hijack

An organization reported to Spain's data protection authority that a third party used an AI agent to execute a multistep intrusion, modifying personal data and accessing invoices. The incident remains under review by data protection authorities.

Details

type
AI-enabled attack
Attackers used AI as a meaningful part of a cyberattack against someone else.
categories
  • AI-assisted intrusionprimary
    Threat actors using AI tooling in reconnaissance, exploitation, lateral movement or operations.
  • Agent hijack
    An AI agent is tricked into unauthorized actions: tool misuse, data exfiltration through the agent, or acting against its principal.
owasp llm top 10
mitre atlas
Both rows are derived from the type and categories (OWASP 2025 edition, ATLAS release 2026.09), not classified per record. How
severity
3 · Confirmed exploitation
Used against real targets; limited or unclear impact.
targets
Enterprise deployment
products
Unnamed AI Agent
incident date
14 Sep 2026
first reported
14 Sep 2026
origin
AI Incident Database
Derived from the AI Incident Database (CC BY-SA 4.0).
classifier confidence
0.90 · published at or above 0.80; see the methodology
tags
ai-agent · data-breach · unauthorized-access
record
created 2026-10-18 06:33Z · updated 2026-10-18 06:59Z · json

Sources · 1

  1. 2026-09-14
    AI Agent Reportedly Exploited Application Vulnerabilities to Modify Personal Data and Access Invoices in Breach Reported to Spanish Data Protection Authority
    AI Incident Database · incidentdatabase.ai/cite/1693

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

Related incidents