Vigil Guard
Enterprise AI detection and response platform — monitors prompts, blocks injection attacks, and stops data leaks in real time.
| What is it | Enterprise AI detection and response platform — monitors prompts, blocks injection attacks, and stops data leaks in real time. |
|---|---|
| Pricing | Contact for Pricing |
| Free tier | No |
| Platform | Web Application |
| API | Yes |
| Works with | n8n |
| Best for | monitoring employee use of public AI tools to prevent data leaks, blocking prompt injection attacks on internal AI applications |
| Domain registered | 2025 |
Data updated Aug. 1, 2026
What does Vigil Guard do?
Vigil Guard is an enterprise AI detection and response (AIDR) platform that monitors, controls, and secures every AI interaction inside an organization. It sits between users and AI models — whether employees chatting with ChatGPT, internal apps calling an LLM, or autonomous agents executing actions — and inspects every prompt, response, and agent action in real time. The platform detects prompt injection attacks (direct and indirect), identifies shadow AI usage, flags semantic drift, and automatically masks sensitive data like PII. It also enforces content moderation policies and language-based access rules, all while integrating with existing SIEM tools like Splunk, IBM QRadar, and Microsoft Sentinel.
Vigil Guard works by intercepting AI traffic through a lightweight proxy or browser extension. Each input is analyzed by parallel detection branches — covering injection patterns, language, scope, content policy, and sensitive data — and the arbiter returns one of three verdicts: ALLOW, SANITIZE, or BLOCK. The whole process takes a few hundred milliseconds. The platform supports all major model providers (OpenAI, Anthropic, Google, Meta, Mistral, Microsoft, xAI, and more) and can be deployed on-premise in a fully air-gapped Docker environment with no external dependencies. Performance benchmarks show 99.2% recall on indirect/RAG injection attacks and 0% false positives on benign prompts.
This tool is built for security teams who need visibility into how AI is used across their organization, AI platform teams that want to ship fast without compromising safety, and risk/compliance officers who need audit trails and GDPR readiness. Real-world use cases include monitoring employees who paste internal documents into public chatbots, blocking crafted prompts hidden inside emails or support tickets that try to hijack an AI agent, and ensuring an invoicing bot doesn't drift into unrelated conversations. If your company has employees using ChatGPT or runs any AI-powered ...
Key features
What makes it stand outWho is Vigil Guard for?
Who benefits most from this toolPricing
Starter
- 100 users
- Up to 100 users (deployment scope)
- Unlimited AI agents
- Protection across six detection layers
- Prompt injection and jailbreak detection
- PII detection and policy enforcement
- Coverage across AI tools (ChatGPT, Claude, and more)
- Content moderation
- Browser extension (ChatGPT, Claude, Gemini and many more)
- Policy engine
- English/Polish native support + partial DE, FR, IT & more
- Fully on-prem with no external data transfer
- Continuous learning from feedback
Growth
Everything in Starter, plus:
- Integration with any AI tool via an OpenAI-compatible API
- Deployment guidance and best practices
- Priority support
Enterprise
Everything in Growth, plus:
- unlimited users
- Unlimited users and environments
- Full on-prem and air-gapped deployment
- Custom policies and integrations
- Guidance on security reviews and audits
- Compliance-ready logging
- SLA and dedicated support
Trust & presence
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