FYEO Agentic AI Security Audits vs Promptfoo LLM Vulnerability Scanner: Side-by-Side Comparison (2026)

FYEO Agentic AI Security Audits

Enterprise security teams deploying LangChain, AutoGen, or CrewAI agents need FYEO Agentic AI Security Audits because it's the only service that combines manual code review with simulated red team testing specifically built for agentic systems, catching prompt injection and unsafe tool use patterns that generic AI security scanners miss. The on-premises deployment and threat modeling framework cover NIST ID.RA and ID.AM, meaning you get asset context and risk quantification rather than just vulnerability lists. Skip this if your agents are still in POC phase or if you need continuous automated scanning; FYEO is a point-in-time audit service, not a monitoring platform.

Promptfoo LLM Vulnerability Scanner

Security teams embedding LLMs into production applications need Promptfoo LLM Vulnerability Scanner because it catches prompt injection and jailbreak vulnerabilities before attackers do, without requiring proprietary integrations or vendor lock-in. The tool's open-source foundation and support for any model architecture, RAG system, or fine-tune means you're testing what you actually ship, not a sandbox version. Skip this if your organization needs continuous runtime monitoring of LLM behavior in production; Promptfoo is a pre-deployment scanner, not a detection layer for active attacks.