AI Security Layer
The end-to-end masking, routing and rehydration layer between your app and AI providers.
Products
Capabilities of the Privian AI Security Layer
Each capability is part of a single security layer between your application and AI providers. Pick the entry point that matches what you need.
Overview
What's inside
The capabilities below are stages of one request path rather than separate controls that applications must assemble themselves.
PII Masking
Detection and deterministic masking of personal and sensitive data before prompts leave your perimeter.
Prompt Security
Guardrails for prompt content — scoping, validation and policy enforcement at the gateway.
LLM Gateway
Privacy-first LLM gateway with BYOK. Simple JSON contract, provider-agnostic.
Rehydration
Restore masked values in the model response so your app sees a normal answer.
Next
Learn how it fits together
See the architecture overview for how these capabilities compose into a single request flow.