Multi-Agent Consensus Manipulation
Manipulate multi-agent consensus mechanisms to influence collective decision-making
Impact · Stage 9
Modify data, deploy malicious code, or disrupt services
ORG-SKILL-SPREAD
Propagating malicious capabilities across an organization's agent fleet through shared skills and registries
A well-understood traditional technique applied to the AI agent context.
consensus-manipulation
Reproductions in Damn Vulnerable AI Agent, the OpenA2A intentionally-broken agent for kill-chain validation.
Recent observations
Technique-attributed observations from the AgentPwn + TrapMyAgent fleet, classified into Threat Matrix techniques by the registry evidence bridge. See the Attack Prevalence Index for the full distribution.
AgentPwn coverage
An AgentPwn trap page produces a payload tagged with this technique class. Following the AgentPwn taxonomy of trap pages shows what an agent encounters.
Worm-propagation and delegation tiers influence multi-agent consensus.
Evidence by source
Evidence timeline
Client fetched the canary embedded in APWN-A2A-003 on agentpwn.com (a2a-attack tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-A2A-003 on agentpwn.com (a2a-attack tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-A2A-003 on agentpwn.com (a2a-attack tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-A2A-003 on agentpwn.com (a2a-attack tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-A2A-003 on agentpwn.com (a2a-attack tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-A2A-003 on agentpwn.com (a2a-attack tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-A2A-003 on agentpwn.com (a2a-attack tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-A2A-003 on agentpwn.com (a2a-attack tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-A2A-003 on agentpwn.com (a2a-attack tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-A2A-003 on agentpwn.com (a2a-attack tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-A2A-003 on agentpwn.com (a2a-attack tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-A2A-003 on agentpwn.com (a2a-attack tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-A2A-003 on agentpwn.com (a2a-attack tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-A2A-003 on agentpwn.com (a2a-attack tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-A2A-003 on agentpwn.com (a2a-attack tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-A2A-003 on agentpwn.com (a2a-attack tier 3; classified llm_crawler/claimed)
Client fetched the canary embedded in APWN-A2A-003 on agentpwn.com (a2a-attack tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-A2A-003 on agentpwn.com (a2a-attack tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-A2A-003 on agentpwn.com (a2a-attack tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-A2A-003 on agentpwn.com (a2a-attack tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-A2A-003 on agentpwn.com (a2a-attack tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-A2A-003 on agentpwn.com (a2a-attack tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-A2A-003 on agentpwn.com (a2a-attack tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-A2A-003 on agentpwn.com (a2a-attack tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-A2A-003 on agentpwn.com (a2a-attack tier 3; classified llm_crawler/claimed)
Detection · HackMyAgent
npx hackmyagent secure --ciLive = implemented in hackmyagent; queued = declaredDefense · OASB controls
How to cite
AI Agent Threat Matrix T-9004 (Multi-Agent Consensus Manipulation). OpenA2A, 2026. https://threats.opena2a.org/techniques/T-9004