Email Agent Hijacking: The Hidden Threat That Breaks Post-Delivery Security
Check Point, Monday, July 13th, 2026
Check Point warns of Email Agent Hijacking, where embedded instructions manipulate AI systems that process inbound email.
Check Point warns organizations about Email Agent Hijacking, a threat targeting AI systems that automatically process email content.
Attackers embed instructions within emails, signatures, attachments, or other content specifically designed to influence how AI systems interpret information. Traditional post-delivery email security is inadequate because AI agents act immediately on receipt, before any human review occurs.
Check Point positions itself as the first vendor addressing the threat by protecting inbound content consumed by AI readers and validating outputs generated by AI writers, and announced a webinar on adopting agentic workflows securely.