Prompt Security vs Cisco (Robust Intelligence)
Updated March 10, 2026
Overview
Prompt Security provides enterprise GenAI security across the entire AI stack. Their platform protects against prompt injection, data exfiltration, harmful content, and shadow AI usage. It works as a transparent proxy for all LLM traffic, enabling centralized security policy enforcement without changing application code.
Robust Intelligence, acquired by Cisco in late 2024, provides AI validation and protection. Now integrated into Cisco's security portfolio, the platform offers automated red-teaming, continuous model validation, and runtime firewall protection for LLM applications. It detects adversarial attacks, data poisoning, hallucinations, and prompt injections across the AI lifecycle.
Key features
Core capabilities each platform advertises.
- Full-stack GenAI security platform
- Prompt injection prevention
- Shadow AI detection
- Data leakage prevention
- Security posture management
- AI firewall and guardrails
- Model validation and testing
- Continuous monitoring
- Compliance reporting
- Enterprise security policies
Strengths and tradeoffs
What each tool does well, and the limitations to keep in mind.
Pros
- AI-native security
- Real-time protection
- Enterprise compliance
Cons
- Adds latency
- Pricing opaque
Pros
- Pioneered AI security category with first AI Firewall
- USD 400M Cisco acquisition validates technology
- Comprehensive protection against AI-specific threats
- Trusted by major enterprises
Cons
- Now part of Cisco—product direction may change
- Technology relatively young and unproven at massive scale
- Cisco has mixed track record with acquisitions
- Requires continuous monitoring infrastructure
Prompt Security or Cisco (Robust — which should you choose?
Choose Prompt Security if you wantChoose if you want
- Securing enterprise LLM deployments
- Detecting unauthorized AI usage
- Preventing sensitive data exposure in AI
- GenAI security compliance
- Shadow AI governance
Choose Cisco (Robust if you wantChoose if you want
- Enterprise AI governance
- Model risk management
- Regulatory compliance for AI systems
- Automated AI security testing
- Production AI monitoring
Compare Prompt Security and Cisco (Robust Intelligence) on your own traffic
Respan lets you trace LLM and agent calls across any model or framework, A/B test prompts on production traffic, and route requests across 500+ models through one gateway.