What problem does it solve?
Email is a high-risk attack surface for both traditional systems and AI-powered workflows, with threats like prompt injection, phishing, business email compromise, and header manipulation that can lead to data loss, financial fraud, and compromised agent behavior.
Core Features & Use Cases
- AI Agent Prompt Injection Defense: Weighted scoring system to detect and block hidden instructions that hijack AI agent behavior when processing inbound email.
- Content & Header Sanitization: Allowlist-based HTML sanitization, invisible Unicode stripping, and header injection prevention to stop content manipulation and SMTP abuse.
- Phishing & BEC Detection: Pattern matching for credential theft, executive impersonation, and lookalike domains, correlated with email authentication results for higher accuracy.
- Link & Attachment Safety: URL validation with redirect chain analysis, and blocking of dangerous file types and macro-enabled documents.
- Use Case: A customer support team using an AI agent to process inbound user emails can use this skill to sanitize all incoming content, block phishing attempts, and prevent attackers from manipulating the agent into sending fraudulent responses or exfiltrating customer data.
Quick Start
Use the email-security skill to scan all inbound customer support emails for prompt injection, phishing, and malicious attachments before your AI agent processes any content or takes action.