Agent Incident RegistryAIR
v1 · updated 19 Oct 2026
In the wild Realized harm

GTIG Q3 2026 tracker: a financially motivated actor used an AI coding chatbot and an autonomous multi-agent framework to build and run a mass credential-harvesting campaign in under six hours

AIR-2026-0224 AIR record · 2026-09-google-gtig-multiagent-credential-harvest
A real party was affected. This incident caused actual consequences, not a demonstrated capability.
From the supporting source
The threat actor leveraged an AI coding chatbot, a prompt, and a set of agent instructions to plan, build, and execute a mass credential harvesting campaign in less than six hours.cloud.google.com
The record
Disclosed
2026-09-08
Product
AI coding chatbot plus multi-agent attack framework (unnamed)
Risk domain
Access control and permissions › Credential theft
Also touches
Privilege escalation
System type
Generative model
Who acted
Agent acted — a multi-agent framework autonomously scanned, harvested credentials and rotated IPs within six hours
Attack surface
Agent framework
Autonomy level
Fully autonomous
Initial vector
Autonomous multi agent vulnerability scanning
Impact type
Credential theft, Unauthorized access
Confidence
High
Submitted by
EAI Internal
Crosswalk
OWASP Agentic Top 10 (2026)
ASI03 – Identity and Privilege Abuse
MITRE ATLAS
AML.T0012 – Valid Accounts
NIST AI RMF
MEASURE 2.7
EU AI Act
Article 13
ISO/IEC
TR 24028; 42001; 23894
AIUC-1
B. Security
Scope
tool failure
Mitigation
Use secure credential storage; Implement short-lived tokens.
Taxonomy
Enkrypt AI agent risk taxonomy · Black-Box Red Teaming of Agentic AI: A Taxonomy-Driven Framework for Automated Risk Discovery
Blast radius
thousands of third-party credentials compromised; the actor operated from compromised victim cloud infrastructure to route traffic through legitimate IP addresses
Capability abused
autonomous_scanningcredential_harvestingreal_time_troubleshootingip_rotationmarkdown_agent_instructions
Taxonomy & references
OWASP ASI03 Identity and Privilege Abuseagentic_offensecredential_harvestingmarkdown_playbooksmandiantmachine_speed_offense
Curator notes
Google Threat Intelligence Group Q3 2026 AI Threat Tracker 'From Prompting to Autonomy' (2026-09-08), Mandiant Q2 2026 investigation; the Google blog is the primary source of record. The actor deployed an autonomous multi-agent framework on compromised cloud infrastructure using preconfigured markdown instruction sets as operational playbooks. Treated as a distinct observation from the exposed 'Recon' C2 server (separate record 2026-09-google-gtig-recon-c2-secrets): the source presents them as two separate observations and does not attribute them to the same actor.
Cite as
Enkrypt AI. "GTIG Q3 2026 tracker: a financially motivated actor used an AI coding chatbot and an autonomous multi-agent framework to build and run a mass credential-harvesting campaign in under six hours". AIR, AIR-2026-0224. https://agentincident.vercel.app/i/AIR-2026-0224/ (accessed 2026-10-19).