HashJack Attack is a threat campaign tracked across 1 threat cluster and 1 intelligence report mention on ThreatCluster. First observed December 5, 2025; most recent activity December 5, 2025.
HashJack Attack is a threat campaign identified as targeting AI-enabled interfaces, specifically AI browsers and agentic AI systems. The focus on AI-native surfaces highlights a shift in attack vectors toward AI-driven environments, with potential impacts on data integrity, privacy, and the reliability of AI workflows.
Security researchers at Cato Networks have identified a new attack technique named HashJack, which targets AI browsers and agentic AI systems. This indirect prompt injection method allows attackers to manipulate these…