Multi-Agent Consensus Manipulation
Manipulate multi-agent consensus mechanisms to influence collective decision-making
Tactic
Impact (Stage 9)
Modify data, deploy malicious code, or disrupt services
Attack Class
ORG-SKILL-SPREAD
Propagating malicious capabilities across an organization's agent fleet through shared skills and registries
Evidence
Well-understood traditional technique applied to the AI agent context.
DVAA Validation
Reproductions in Damn Vulnerable AI Agent, the OpenA2A intentionally-broken agent for kill-chain validation.
consensus-manipulation
Honeypot Coverage (AgentPwn)
An AgentPwn trap page produces a payload tagged with this technique class. Following the AgentPwn taxonomy of trap pages shows what an agent encounters.
Evidence Source Breakdown
Evidence Timeline
HMA check SUPPLY-001 failed on fake-vulnerable-agent
HMA check SUPPLY-001 failed on fake-vulnerable-agent
HMA check SUPPLY-001 failed on opena2a/code-review-skill
HMA check SUPPLY-001 failed on opena2a/code-review-skill
HMA check SUPPLY-001 failed on fake-vulnerable-agent
HMA check SUPPLY-001 failed on damn-vulnerable-ai-agent
HMA check SUPPLY-001 failed on hackmyagent-release-test-vplv
Detection (HackMyAgent)
npx hackmyagent secure --ciLive = check implemented in hackmyagent; queued = declared, not yet implementedDefense (OASB Controls)
How to Cite
AI Agent Threat Matrix T-9004 (Multi-Agent Consensus Manipulation). OpenA2A, 2026. https://threats.opena2a.org/techniques/T-9004