Metis Garrison
Securing the journey of AI
Artificial Intelligence introduces a new attack surface that traditional firewalls cannot see. Metis Garrison is the specialized defense layer designed to protect your Large Language Models (LLMs) from adversarial attacks, data leakage, and unauthorized manipulation. It wraps your AI infrastructure in a protective shield, ensuring that your models remain helpful, honest, and secure—even when under attack.
Key Benefits
- Model agnostic—protects GPT, Llama, or custom models
- Zero latency impact with less than 20ms added latency
- HKMA GenAI Guiding Principles compliant
- Full forensic audit trail for every interaction
The Threat: Why AI Needs a New Firewall
Standard cybersecurity tools protect networks; they do not understand language. Metis Garrison is an AI Firewall that inspects the semantic meaning of every prompt and response. Bad actors are using 'Prompt Injection' and 'Jailbreaking' to trick AI models into bypassing safety rules. Garrison stops them before they reach your models.
Defense Against Adversarial Attacks
Prompt Injection Blocking: Garrison analyzes incoming prompts for 'jailbreak' patterns (e.g., 'Ignore previous instructions') and neutralizes them before they reach the model. Semantic Anomaly Detection: Unlike keyword filters, Garrison uses a lightweight AI model to detect 'intent.' If a user asks a banking bot to 'write a SQL injection script' using clever metaphors, Garrison recognizes the malicious intent and blocks it. Rate Limiting by Intent: Stop 'Denial of Service' attacks that try to exhaust your GPU resources with complex, nonsense queries. Garrison identifies and throttles abusive semantic patterns instantly.
Data Loss Prevention (DLP) for LLMs
The biggest risk isn't just what goes in, but what comes out. Automated PII Redaction: Garrison acts as a final checkpoint for all model outputs, automatically detecting and masking sensitive entities—HKID numbers, credit card details, patient names—before the text is displayed to the user. Context-Aware Filtering: Garrison understands role-based access. A 'Manager' might see unredacted financial figures, while a 'Junior Staff' member seeing the same AI summary will have specific dollar amounts masked automatically. Invisible Watermarking (Enterprise Option): Embed invisible, traceable watermarks into AI-generated documents, allowing you to track the source of any leaked internal memo back to the specific user and session.
The Guardrails Engine
Define the boundaries of your AI's behavior with strict, deterministic rules. Topic Confinement: Ensure your customer service bot only discusses banking products. If a user tries to discuss politics or competitors, Garrison intercepts the query and returns a polite, pre-scripted refusal—never letting the LLM hallucinate an answer. Tone & Brand Safety: Monitor AI responses for toxic language, bias, or aggressive tones. Garrison can 'rewrite' a rough AI draft into polite corporate language in real-time before the user sees it. Hallucination Checks: Garrison cross-references the LLM's answer against your trusted knowledge base (RAG). If the LLM invents a fact that isn't in your documents, Garrison flags the response as 'Low Confidence' or blocks it entirely.
Continuous Security Monitoring
Security is not a one-time setup. Shadow AI Discovery: Detect when employees are pasting internal code or data into unauthorized external AI tools (like public ChatGPT). Garrison can sit at the network edge to block these outbound data flows. Audit Logging: Every blocked attack, every redacted PII instance, and every policy violation is logged with a full forensic trail. You get a monthly 'AI Threat Report' for your risk committee.
Why CISOs Mandate Metis Garrison
Model Agnostic: Garrison protects any model—whether it's GPT, Llama, or your custom fine-tuned model. You can switch models without rewriting your security rules. Zero Latency Impact: Built on ultra-fast, optimized infrastructure, Garrison adds less than 20ms of latency to your chat interactions. Regulatory Alignment: Specifically designed to meet the HKMA GenAI Guiding Principles regarding 'protection of customer data' and 'trustworthiness of outputs.'
Features & Capabilities
Everything you need to transform your business operations
Prompt Injection Blocking
Analyzes incoming prompts for jailbreak patterns and neutralizes them before they reach your AI model.
Semantic Anomaly Detection
AI-powered intent detection that recognizes malicious requests even when disguised with clever metaphors.
Automated PII Redaction
Final checkpoint for all model outputs, automatically masking sensitive entities before display to users.
Context-Aware Filtering
Role-based access control that adjusts AI responses based on user permissions and clearance levels.
Hallucination Checks
Cross-references LLM answers against your trusted knowledge base, flagging or blocking unverified facts.
Continuous Security Monitoring
Shadow AI discovery, audit logging, and monthly AI Threat Reports for your risk committee.
Ready to Get Started with Metis Garrison?
Let our experts help you implement the perfect solution for your business needs.