B2B Enterprise · Data Protection

PII Obfuscator for Enterprise LLMs

Real-time anonymization of sensitive data, documents and contacts. Real data never leaves your company's secured perimeter.

98.9%
detection recall across entities
Real-time
in-flight data masking
70+
supported data formats & types
0 bytes
stored data (Stateless)
How It Works

Real-Time Data Masking Workflow

Inbound Request · Customer Boundary6 Entities Detected
Process refund for client John Doe, phone +1 (555) 123-4567, card 4276 1234 5678 9012, email john.doe@example.com, Tax ID US-94820194, address: 10 Main St, New York.
Detected: Name, Phone, Card Number, Email, Tax ID, Address
Personal Information6

We concealed personal data from the model so the external provider cannot see it, and restored it back in the response.

John Doe+1 (555) 123-45674276 1234 5678 9012john.doe@example.comTax ID US-9482019410 Main St, New York
External AI · Secure ContextZero Data Leak
Refund request for <<PER_0001>> (Tax ID <<TAX_0001>>) is confirmed. Payout to card <<CARD_0001>> approved. Receipt sent to <<EMAIL_0001>> and <<PHONE_0001>>. Delivery: <<ADDR_0001>>.
Model reasons over tokens with zero PII exposure
Final Output · Customer PerimeterRestored
Refund request for John Doe (Tax ID US-94820194) is confirmed. Payout to card 4276 1234 5678 9012 approved. Receipt sent to john.doe@example.com and +1 (555) 123-4567. Delivery: 10 Main St, New York.
Full semantic coherence · Strict privacy preserved
Entity Catalog

What the System Detects & Redacts

Specialized templates and algorithmic checksums eliminate false positives.

National IDs & Documents

Passports, Tax Identification Numbers, Social Security IDs, Registration Numbers, Driver's Licenses, and Birth Certificates.

Finance & Payments

Credit and debit cards, expiration dates, CVV codes, international IBAN, and corporate bank accounts.

Personalities & Contacts

Full names in varied forms, international and local phone numbers, email addresses, social handles, and physical addresses.

Documents & Spreadsheets

Deep redaction for DOCX, XLSX, PDF, PPTX, CSV, JSON, and TXT.

Secrets & Tokens

API keys, JWT and Bearer tokens, system passwords, user logins, and one-time OTP codes.

Custom Business Rules

Integrate proprietary keyword dictionaries and custom regular expressions with strict ReDoS protection.

Information Security

Enterprise-Grade Architecture

Stateless by Default

Source texts, files, and mapping dictionaries are never stored on disks or databases — processing occurs strictly in volatile RAM.

Fail-Closed Security

Any unexpected processing disruption instantly terminates external transmission with HTTP 503 — unmasked data never leaks outwards.

Evasion Protection

Pre-scan text normalization catches zero-width spaces, mixed Cyrillic/Latin homoglyphs, and URL percent-encoded characters.

Deterministic Tokens

The same person or credential receives the identical placeholder across the request, preserving logical conversational context.

SSE Streaming Support

Buffered stream decoder de-obfuscates live token chunks in real time without latency spikes or placeholder boundary splitting.

Zero-Lag Processing

Data masking runs in real time without slowing down AI response generation, even for large documents and complex spreadsheets.

Integration

Three Integration Options

In GPTunneL Web Chat

Personal data protection mode is toggled via a dedicated setting in conversation parameters or corporate organization profiles.

Cloud API

Pass the "obfuscate": true flag in POST /v1/chat/completions — data is automatically masked before reaching the model and restored in the response.

On-Premises / VPC

Delivered as a standalone Docker container for air-gapped deployment in private clouds or on-premise company hardware.

FAQ

Frequently Asked Questions

No. The LLM receives structured, deterministic tags (e.g. <<PER_0001>> or <<CARD_0001>>) that clearly define entity roles. The model treats them as standard contextual entities and references them properly in its answer.
Request

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Leverage state-of-the-art LLMs without risking sensitive data leaks.