Well-known LLM; identity undisclosed: Unnamed Spanish organization
Review CAT-U06 · Catalogue U06, RAT-096
Agent-run breach reported; rogue origin unproven. Human intent / agent instructions not established. Official index accessible; article body not retrievable. Excluded from confirmed rogue-model list.
Reviewed: Not recorded · Rule: external-intrusion-v1
The linked AEPD original returned no readable article (direct request failed; web returned only a skeleton), and the Reuters link was blocked. Accessible AS reporting quotes AEPD saying a third party used an agent as an attack instrument; no evidence of divergence from operator intent. Preserve this retrieval gap and existing U06 hold; no qualification from a derivative database summary.
Reviewed: · Rule: roguewatch-organizational-harm-v1
Evidence status
Agent-run breach reported; rogue origin unproven
Dates and discovery
- Incident date
- Date undisclosed; reported Sep 14, 2026
- Catalogue disclosure / source date
- Added to research / record
- Posted to RogueWatch
- No linked public incident
- First observed
- Not recorded
- Discovery channel
- Not recorded
When to reconsider
Original AEPD article becomes readable or agency provides the actual notification/authorization account; current other reporting indicates human-directed use, not a qualifying rogue event.
Dates use America/Los_Angeles. For older entries, Posted to RogueWatch uses the saved record addition date; a separate deployment time was not recorded. Future posting timestamps record first public qualification. Source publication and incident occurrence are separate.
Sources
- AEPD — First notification of an AI-agent personal-data breach (Sep 14, 2026)Original account · www.aepd.es
- AEPD — Official blog index (Sep 14, 2026 entry)Relationship not established · www.aepd.es
- Rogue AI Tracker discovery entryReporting / interview · rogueaitracker.com
- www.reuters.comReporting / interview · www.reuters.com
- as.comReporting / interview · as.com · Published 2026-09-15
Decision history
- · Assessment imported
Imported the existing research decision. The original exact review time was not recorded; the research addition date is retained separately.
Evidence source - · Case-by-case comparison audit
RAT-096: retrieval-failed. The linked AEPD original returned no readable article (direct request failed; web returned only a skeleton), and the Reuters link was blocked. Accessible AS reporting quotes AEPD saying a third party used an agent as an attack instrument; no evidence of divergence from operator intent. Preserve this retrieval gap and existing U06 hold; no qualification from a derivative database summary. Source checks: failed: https://www.aepd.es/prensa-y-comunicacion/blog/primera-notiviacion-brecha-datos-personales-causada-por-ataque-ejecutado-mediante-agente-ia. Direct HTTP failed to provide article text; web fallback returned a12-line site skeleton without original article. No original substance examined. Keep retrieval-failed. blocked: https://www.reuters.com/business/spanish-data-watchdog-publicises-first-ai-agent-linked-data-breach-report-2026-09-15/. Reuters original reporting blocked; not treated as read. read: https://as.com/actualidad/ciencia/la-aepd-lo-confirma-detectan-la-primera-brecha-de-seguridad-en-espana-hecha-con-inteligencia-artificial-f202609-n/. AS quotes AEPD saying a third party used an AI agent as an instrument to chain attack stages; it does not establish a model exceeded that human’s instructions. Supports a tentative human-directed exclusion but does not replace the unreadable AEPD primary.
Evidence source · Evidence source · Evidence source - · Retained review-queue assessment
The linked AEPD original returned no readable article (direct request failed; web returned only a skeleton), and the Reuters link was blocked. Accessible AS reporting quotes AEPD saying a third party used an agent as an attack instrument; no evidence of divergence from operator intent. Preserve this retrieval gap and existing U06 hold; no qualification from a derivative database summary.
Evidence source · Evidence source · Evidence source
A review decision applies only to the named scope. Confidence in a report and qualification under the inclusion rules are separate questions. Review records do not add incidents to the globe or leaderboard.