Legal Teams: Zero-Trust Contract Redaction for ChatGPT
Chrome Extension

Legal Teams: Zero-Trust Contract Redaction for ChatGPT

Maintain attorney-client privilege while using ChatGPT. Redact client names, deal values, and confidential contract terms natively in the browser.

100% Local Processing ✈ Airplane Mode Verified ⊘ No Server Logs
Live Simulation

Zero-Trust Data Sanitization

Watch PrivacyScrubber's local engine transform sensitive Security data instantly in your browser, without any API calls.

Automated Detection Classes:
User / Server IP Addresses AWS_KEY INTERNAL_HOSTNAME MAC_ADDRESS VULN_ID
100% Client-Side Execution
Wasm_Engine
SIEM ALERT > Timestamp: 2026-08-21T04:12:00Z | Threat: CRITICAL Src: 192.168.12.44 -> Dst: siem-auth.internal.corp (10.240.0.12) User: d.novak@defense-systems.net | Key: AKIA4X9M2PLRT887NNZZ Exploited: CVE-2026-44821 | Action: Unauthorized S3 bucket dump.
SIEM ALERT > Timestamp: 2026-08-21T04:12:00Z | Threat: CRITICAL Src: [IP_1] -> Dst: [HOSTNAME_1] ([IP_2]) User: [EMAIL_1] | Key: [API_KEY_1] Exploited: [CVE_1] | Action: Unauthorized S3 bucket dump.
Click any token above to test False Positive reveal

AI Risk Calculator

50
Risk ● Critical
Leaks/yr
9,000
Max Fine
€20M

Get Your Risk Estimate

Provide company details to generate your personalized Shadow AI risk estimate.

Attorneys, general counsel, and contract managers leverage AI to redline complex commercial agreements, analyze indemnity clauses, and summarize case law. PrivacyScrubber's Legal Extension protects attorney-client privilege by sanitizing client names, deal amounts, and proprietary clauses before prompts leave the law firm's local network.

Attorney-Client Privilege Defense & Contract Tokenization

Tokenizes client names, counterparty entities, monetary settlement figures, and proprietary patent disclosures in <2ms local browser memory.

● IN-PAGE SANDBOXED INTERCEPTION Intersects DOM input before network transmission. Evaluates regex in <2ms browser RAM.
● 3-LINE LOOKAHEAD STITCHING Automatically re-assembles entities split across linebreaks before tokenization.
● REVERSIBLE TOKEN MAP Substitutes raw PII with reversible tokens ([NAME_1], [ID_1]) for instant 1-click restore.
● ADMIN BLUEPRINT LOCK Enterprise policies deploy with [ENTERPRISE LOCKED] badge — tamper-proof for staff.

Defending Third-Party Disclosure Privilege Waivers

Under US and international legal standards, sharing unencrypted client communications or draft agreements with third-party cloud AI vendors can constitute a waiver of attorney-client privilege. PrivacyScrubber's browser extension intercepts legal text, substituting client names with [CLIENT_ENTITY_1] and transaction amounts with [TRANSACTION_VALUE_1], allowing attorneys to analyze clauses without waiving privilege.

Commercial Contract Indemnity Clause Redline

  1. 1
    Copy or Paste Unsanitized Content: Attorney pastes 20-page Master Services Agreement (MSA) containing client corporate name, counterparty name, and liability caps.
  2. 2
    Real-Time In-Browser Sanitization: The extension replaces party names with [PARTY_A] and [PARTY_B] while leaving all governing law, indemnity, and arbitration terms intact.
  3. 3
    Submit to LLM with Zero Cloud Exposure: Attorney prompts ChatGPT: "Analyze limitation of liability enforceability under Delaware law for [PARTY_A]". AI performs legal analysis.
  4. 4
    Instant Local Reversal (Contextual Reveal): Attorney restores actual party names via 1-click in-page reveal and exports redlined agreement for client review.

ABA Model Rule 1.6 (Confidentiality of Information) Compliance

American Bar Association (ABA) Model Rule 1.6 requires lawyers to make reasonable efforts to prevent inadvertent disclosure of client information. Local edge tokenization satisfies Rule 1.6 requirements, following our Legal AI Compliance framework.

Offline Parsing of Large Multi-Party Agreements

Parse multi-hundred page PDF loan agreements and merger filings locally in browser memory without sending un-redacted documents to cloud servers, as detailed in attorney-client privilege in AI and protecting DOCX contracts.

Privilege Defense Audit Receipts

Generate cryptographic audit receipts proving that contract analysis prompts contained zero identifiable client information, meeting enterprise data governance standards.

Latest Capabilities: Multi-Line Stitching & Local OCR

The PrivacyScrubber Chrome Extension features a smart 3-Line Name-Stitching Lookahead to capture names split across lines (e.g. Firstname MiddleInitial Surname) in scanned medical/clinical records, NDAs, and PDFs. It also supports Local Wasm OCR & PDF Sanitization to redact text from screenshots/PDFs offline, and Zero-Trust Session Sync (Argon2id + XChaCha20-Poly1305) to share rules peer-to-peer securely.

Enterprise Adoption Use Cases

CISO Security Team DLP GOVERNANCE
Zero-Trust Verified
Security teams deploy client-side sanitization to keep outbound AI prompts free of sensitive organizational data, avoiding complex multi-party DPA negotiations.
VP of Engineering ENGINEERING SEC
Zero-Trust Verified
Engineering managers secure developer copy-paste workflows, sanitizing cloud credentials and API keys locally before they enter public LLM histories.
Risk & Audit Lead COMPLIANCE AUDIT
Zero-Trust Verified
Compliance directors verify local-only sanitization at the browser extension level, satisfying SOC 2 Type II controls for external AI data transmission.
Data Protection Officer GDPR COMPLIANCE
Zero-Trust Verified
Data protection officers enforce client-side tokenization, keeping prompt text fully minimized and anonymous in compliance with GDPR data processing rules.
Flat Rate — Unlimited Seats

Your Whole Team on Real Client Data. Safely. $99/mo Flat.

No per-seat pricing. No DPA negotiation. No IT portal. Secure your entire organization with client-side PII masking — $99/month flat, unlimited users. SOC 2 & HIPAA ready. Works in Airplane Mode.

Protect My Team
COMPLIANCE FAQ

Frequently Asked Questions

Common questions about deploying zero-trust AI for Chrome Extension Teams.

← More Chrome Extension Solutions