The secure trust layer for enterprise AI

Secure how your teams use AI

Protect sensitive data, prevent prompt-based attacks and stay compliant through a secure interface designed for controlled generative AI interactions.

No compromise Fully Local Controlled Usage
THREAT_DETECTION_ACTIVE: SYSTEM_EXPOSED
CRITICAL_DATA_LEAK:
"Please analyze our Q3 revenue forecast: [Project_Phoenix_Budget_v4.xlsx]..."

GenAI is already part of your company,
without control

Employees increasingly rely on tools like ChatGPT to gain productivity. But these interactions introduce critical risks that most organizations ignore until it's too late.

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Shadow AI Default

Uncontrolled exposure of sensitive business data through personal accounts.

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Prompt Injection Attacks

Malicious instructions designed to manipulate model outputs and leak secrets.

What lexonym does

Lexonym is a cybersecurity software for generative AI usage. It creates a controlled environment where secure usage becomes the default.

Installed Locally

Desktop or server. Your data stays within your perimeter at all times.

No SaaS

Zero external data retention. Lexonym doesn't store your secrets.

Encryption Native

Mappings are encrypted and stored within your private infrastructure.

How it works

01 / Security

Data Protection Layer

  • Real-time detection
  • Local Pseudonymization
02 / Defense

Prompt Security Engine

  • Injection detection
  • Malicious neutralization
03 / Shield

System Protection

  • Prompt isolation
  • Integrity reinforcement
04 / Ops

Access & Governance

  • Role-based permissions
  • Model usage control
05 / Audit

Monitoring & Visibility

  • Usage Metrics
  • Detailed Audit logs

Plug & Play

Fast Enterprise Adoption

Performance without compromise

Security should not limit access to the best AI models. Lexonym lets you securely access and switch between multiple leading generative AI models within a single conversation, without committing to a single provider.

OpenAI Anthropic Gemini Mistral AI
No Lock-in

Switch providers instantly.

Cross-Check

Reduce hallucinations.

Optimized ROI

Best model for the task.

Zero Overhead

No GPU maintenance.

Compliance & Regulation

Frameworks such as the AI Act and GDPR require organizations to control data flows. If you can’t control how generative AI is used, you can’t demonstrate compliance.

Control data shared with generative AI tools
Ensure traceability and governance of every interaction

Scope & Positioning

We Secure
User interactions Workflows & Documents User-initiated AI usage
Out of Scope

AI running autonomously inside software (embedded AI, background agents).

Start securing your
GenAI usage today

Join our private beta and transform AI from a liability into a safe productivity accelerator.

Designed in France GDPR Compliant No SaaS Overhead