AI Agent Threat Intel (Feb 2026 month to date): Tool chain escalation displaces instruction override as #1 technique, agent-targeting attacks hit 26.4% - 91K production interactions

Key Points:

• Tool chain escalation has replaced instruction override as the primary attack technique in AI agent deployments.
• A total of 91,284 interactions were recorded across 47 deployments, with 35,711 threats identified, indicating a significant level of malicious activity targeting AI systems.
• Analysts should prioritize monitoring for tool chain escalation techniques and enhance defenses against agent-targeting attacks.

Technical Details: The report highlights that tool chain escalation is now the most prevalent technique used against AI agents, reflecting a shift in attacker tactics.

MITRE ATT&CK Techniques: None mentioned

IOCs Mentioned: None mentioned