Multi-Turn Manipulation
Gradually shift agent behavior over multiple conversation turns to bypass single-turn detection
Initial Access · Stage 2
Gain control over agent behavior through prompt manipulation or input exploitation
SOUL-INJECT
Directly manipulating or overriding the agent's system-level instructions and behavioral boundaries
Reproduced in a controlled lab environment (DVAA) with documented steps.
multi-turn challenges
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.
Task-hijacking and progressive-desensitization tiers shift behavior across multiple steps.
Evidence by source
Evidence timeline
Client fetched the canary embedded in APWN-CM-005 on agentpwn.com (context-manipulation tier 5; classified browser/claimed)
Client fetched the canary embedded in APWN-CM-005 on agentpwn.com (context-manipulation tier 5; classified browser/claimed)
Client fetched the canary embedded in APWN-CM-004 on agentpwn.com (context-manipulation tier 4; classified browser/claimed)
Client fetched the canary embedded in APWN-CW-003 on agentpwn.com (context-window tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-CM-004 on agentpwn.com (context-manipulation tier 4; classified browser/claimed)
Client fetched the canary embedded in APWN-CW-003 on agentpwn.com (context-window tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-CM-003 on agentpwn.com (context-manipulation tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-CM-001 on agentpwn.com (context-manipulation tier 1; classified browser/claimed)
Client fetched the canary embedded in APWN-CM-005 on agentpwn.com (context-manipulation tier 5; classified browser/claimed)
Client fetched the canary embedded in APWN-CM-001 on agentpwn.com (context-manipulation tier 1; classified browser/claimed)
Client fetched the canary embedded in APWN-CM-005 on agentpwn.com (context-manipulation tier 5; classified browser/claimed)
Client fetched the canary embedded in APWN-CM-003 on agentpwn.com (context-manipulation tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-CM-004 on agentpwn.com (context-manipulation tier 4; classified browser/claimed)
Client fetched the canary embedded in APWN-CW-003 on agentpwn.com (context-window tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-CM-001 on agentpwn.com (context-manipulation tier 1; classified browser/claimed)
Client fetched the canary embedded in APWN-CW-003 on agentpwn.com (context-window tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-CM-001 on agentpwn.com (context-manipulation tier 1; classified browser/claimed)
Client fetched the canary embedded in APWN-CM-003 on agentpwn.com (context-manipulation tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-CM-003 on agentpwn.com (context-manipulation tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-CM-005 on agentpwn.com (context-manipulation tier 5; classified browser/claimed)
Client fetched the canary embedded in APWN-CM-001 on agentpwn.com (context-manipulation tier 1; classified browser/claimed)
Client fetched the canary embedded in APWN-CM-003 on agentpwn.com (context-manipulation tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-CM-004 on agentpwn.com (context-manipulation tier 4; classified browser/claimed)
Client fetched the canary embedded in APWN-CM-003 on agentpwn.com (context-manipulation tier 3; classified browser/claimed)
Client fetched the canary embedded in APWN-CW-003 on agentpwn.com (context-window tier 3; classified browser/claimed)
Detection · HackMyAgent
npx hackmyagent secure --ciLive = implemented in hackmyagent; queued = declaredDefense · OASB controls
How to cite
AI Agent Threat Matrix T-2007 (Multi-Turn Manipulation). OpenA2A, 2026. https://threats.opena2a.org/techniques/T-2007