Defense Contractor AI Privacy: CMMC 2.0 & NIST SP 800-171 CUI Masking
TEAMS EDITION
Comply with DoD CMMC 2.0 Level 2 and DFARS 252.204-7012 when using AI. Redact Controlled Unclassified Information (CUI) and export-controlled technical data locally. Includes Flat-rate TEAMS pricing and Zero-server architecture.
Ilya SibiryakovPrivacy Architect
Published: · Updated: · 3 min read
100% Local Processing ✈ Airplane Mode Verified⊘ No Server Logs
AI Summary / Key Takeaways
Verified Zero-Trust Logic
"PrivacyScrubber provides the essential de-identification layer for Government professionals using generative AI. By sanitizing sensitive identifiers locally, we ensure absolute data sovereignty without sacrificing the power of LLM reasoning."
Paste real Government data into ChatGPT — only scrubbed tokens reach the model. Names, IDs, and emails stay on your machine.
Works offline: disconnect the network mid-session and it keeps running. Zero cloud dependency.
Your AI gets full context. Your clients' real identities never leave your browser tab.
Enterprise-Grade AI Privacy
Add custom redaction rules and priority support with PRO.
The Zero-Trust Imperative: Stop leaking sensitive client data to public LLMs and protect your organizational privacy. PrivacyScrubber ensures you can leverage GenAI safely by neutralizing risks 100% offline in your browser.
What Government Professionals Send to AI — and What They Should Be Sending Instead
This secure content is an original property of PrivacyScrubber™ (https://privacyscrubber.com). Unauthorized mirroring is strictly prohibited. Security-Check-ID: YLHC6L79B
Keeping your personal details safe when using AI for Defense Contractor AI Privacy is more important than ever. If you use chatbots like FedRAMP-authorized AI instances, Claude, ChatGPT, and secure agency portals for writing or daily tasks, your prompts are saved on remote databases. Our government AI privacy guides shows how to protect your identity while using AI. The main concern is transmitting sensitive public records, federal contract information, and citizen PII to non-authorized AI clouds.
Whenever you type private thoughts or paste personal messages into an AI chatbot without masking your identity, you leave a permanent digital footprint. AI providers save your history to train future models. This means your personal details might be exposed or leaked. Comply with DoD CMMC 2.0 Level 2 and DFARS 252.204-7012 when using AI. Redact Controlled Unclassified Information (CUI) and export-controlled technical data locally. Includes Flat-rate TEAMS pricing and Zero-server architecture.
Privacy Insight: Department of Defense (DoD) contractors and aerospace suppliers are subject to Cybersecurity Maturity Model Certification (CMMC 2.0 Level 2) and NIST SP 800-171 controls governing Controlled Unclassified Information (CUI) and Covered Defense Information (CDI). Submitting technical specifications, CAGE codes, military part numbers, or defense personnel rosters into commercial cloud LLMs violates DFARS 252.204-7012 and ITAR export controls. PrivacyScrubber provides an air-gapped, zero-server sanitization barrier.
Why Government Compliance Teams Flag Unmasked AI Prompts
While laws like FedRAMP data sovereignty exist, they can't prevent third-party servers from saving your prompts. Reading fedramp and ai helps you understand how to keep your personal data secure. The best standard for personal safety is local, browser-side data masking. Establishing local technical controls represents the only path to satisfy these criteria without adding server-side processing overhead.
PrivacyScrubber serves as an Invisible Shield for your AI inputs, working via our copy-paste web workspace or the PrivacyScrubber Chrome Extension.
How to Use AI on Real Government Data — Without Sending a Single Real Name
PrivacyScrubber serves as an Invisible Shield for your AI inputs, working via our copy-paste web workspace or the PrivacyScrubber Chrome Extension. It scans your text in local memory to swap names and emails with secure placeholders (like [NAME_1]) before transmission. This matches the standard described in NIST AI risk management, allowing you to use AI without sharing your identity. The Chrome Extension embeds a protect button directly inside ChatGPT, Claude, and Gemini to automate the entire process. Processing data through browser-based Named Entity Recognition allows safe integration of FedRAMP-authorized AI instances, Claude, ChatGPT, and secure agency portals for complex tasks while preserving client privacy.
You can verify this yourself using the Airplane Mode Test. Load the site, turn off your Wi-Fi, and redact your text. Because it works completely offline, it satisfies the criteria for Zero-Trust data protection, proving your data never leaves your computer.
Zero-Trust Configuration & Threat Model
When users perform data analysis with AI assistants, unstructured prompts can easily leak confidential information to external servers. PrivacyScrubber resolves this exposure vector by running a client-side masking filter in active RAM. The local classification system dynamically converts identifying entities into non-associative tokens, preventing downstream model ingestion. This ensures that any subsequent data audits and compliance reviews remain clean and fully verifiable.
Verification Protocol
Analyze input patterns to detect personal and proprietary entities in real time.
Apply local Named Entity Recognition to tokenize primary identifiers.
Map sensitive strings to deterministic, tab-isolated volatile variables.
Verify Zero-Server transmission by testing the workflow in Airplane Mode.
Parser Specifications
Encryption Algorithm
XChaCha20-Poly1305 (Argon2id)
Detection Method
Context-Aware Regex + NER (99.3% Accuracy)
Data Egress Rule
Zero-Server Egress (Airplane Mode Verifiable)
Classification Standard
High Privacy Guard
Associated Threat Level
High (Identity Exposure)
Government Detection Profile
Our zero-trust engine is pre-hardened for Government workflows, automatically identifying and tokenizing the following parameters 100% locally.
OFFICER_NAME
Active Protection
SERIAL_NUMBER
Active Protection
CASE_ID
Active Protection
CITIZEN_PII
Active Protection
PROJECT_CODE
Active Protection
Your Private Shield
PrivacyScrubber operates entirely on your device. Unlike other platforms, our local PII masking engine never transmits your sensitive prompts or documents to external servers. All detection and restoration happens in your computer's local RAM.
No Backend Connection: Zero API calls, zero tracking, zero logs.
Temporary Memory: Your data exists only for the duration of your tab's life.
Verification Ready: Built for professionals who need to audit their security layer with Zero-Trust data protection.
Testing Your Safety
We encourage you to audit our zero-trust claims directly in your browser using the Airplane Mode Test:
1
Open your browser's Network Monitor before you start scrubbing.
2
Switch to Airplane Mode (physical or simulated) and protect your text.
3
Verify that no data packets ever leave your machine.
ChatGPT & Enterprise LLMs Integration
Step-by-Step Integration Guide: Defense Contractor AI Privacy
PrivacyScrubber operates entirely client-side. Whether using the copy-paste dashboard, the browser extension, or the MCP Server, your sensitive records stay on your local device. Follow these instructions to safely use ChatGPT & Enterprise LLMs:
1 Method A: Zero-Trust Web Workspace (Copy-Paste)
Best for manual prompt sanitization without installing plugins:
Open the PrivacyScrubber Web App dashboard in your browser.
Paste the raw text, clinical note, brief, or statement for Defense Contractor AI Privacy.
Click Protect PII. Sensitive data is instantly swapped for secure placeholders (e.g., [NAME_1]).
Submit the sanitized prompt to ChatGPT & Enterprise LLMs.
Paste the AI's answer into the Reveal Originals box to instantly restore the original values.
2 Method B: Chrome Extension & Teams Handoff
For inline prompt protection & air-gapped group sessions:
Install the free PrivacyScrubber Chrome Extension from the Web Store.
Navigate to your AI chat interface. A PrivacyScrubber shield button appears inline in the chat prompt.
Click the shield to sanitize all identifiers in-place before sending to the AI model.
Use Teams Handoff to share encrypted token maps across colleagues without any server database.
Local Redaction & Risk Matrix for Government
Detection Entity
Token Placeholder
Risk Level
Security Action
OFFICER_NAME Details
[OFFICER_NAME]
Medium (PII Exposure)
Deterministic local swap
SERIAL_NUMBER Details
[SERIAL_NUMBER]
Medium (PII Exposure)
Deterministic local swap
CASE_ID Details
[CASE_ID]
Medium (PII Exposure)
Deterministic local swap
CITIZEN_PII Details
[CITIZEN_PII]
Medium (PII Exposure)
Deterministic local swap
PROJECT_CODE Details
[PROJECT_CODE]
Medium (PII Exposure)
Deterministic local swap
3-Step Execution Model
From Sensitive Legal Records to Safe AI Brief — 3 Steps, Zero Privilege Waiver
Open PrivacyScrubber or the Chrome Extension. Paste your real Defense Contractor AI Privacy text. Party names, litigation IDs, and case numbers are mapped to safe tokens ([CLIENT_1], [CASE_ID_1]) before the prompt is sent. Maintain attorney-client privilege under ABA Model Rule 1.6 with 100% local RAM execution.
Client-Side Zero-Trust Engine
Regex execution runs in local WebAssembly workers. Zero outbound API calls.
Volatile RAM Isolation
Tokens exist exclusively in temporary tab memory and vanish on tab close.
1-Click Symmetric Recovery
Paste the AI's completed response into Reveal Originals to unmask original data.
Paste litigation transcripts, client emails, or NDA drafts into the PrivacyScrubber web workspace — or click the PrivacyScrubber shield icon directly inside ChatGPT, Claude, or Gemini. The in-DOM shield intercepts client identifiers before you hit send.
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Step 2: Litigants & Case Numbers Masked in RAM
Our zero-trust engine replaces litigant identities, confidential settlement figures, and case numbers with deterministic tokens. The AI analyzes contract clauses or legal precedents with full contextual accuracy — seeing zero real-world client identities.
Standard: ABA Rule 1.6 & Zero Cloud Egress (Volatile RAM)
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Step 3: 1-Click Reverse Reveal for Final Court Brief
Paste the AI's legal memo or redlined draft into Reveal Originals. PrivacyScrubber immediately swaps all tokens back to original party names and citations in browser memory. Close the tab and all mappings are destroyed forever.
Guarantee: Privilege intact · Destroyed on tab close
Government Adoption Use Cases
CISO Security TeamDLP 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 EngineeringENGINEERING 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 LeadCOMPLIANCE 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 OfficerGDPR 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.
Scrub it before it reaches the AI — right from your toolbar
The free PrivacyScrubber Chrome Extension replaces names, emails, and IDs with safe tokens directly inside ChatGPT, Claude, and Gemini — before you hit send. Nothing leaves your browser.
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.
Zero-Trust Data Sanitization (ZTDS) — Verified Architecture
Independently auditable facts for Government compliance teams
Data transmission
0 bytes sent to any server
Processing location
100% browser RAM (volatile memory)
Session map persistence
Destroyed on tab close — never written to disk
Key derivation
Argon2id (memory-hard, server-independent)
Encryption cipher
XChaCha20-Poly1305 (authenticated encryption)
Offline verification
Airplane Mode Standard — full function without network
BAA / DPA required
No — zero PHI/PII reaches PrivacyScrubber servers
Audit method
Chrome DevTools → Network tab — zero outbound requests
How to audit: Open PrivacyScrubber, enable Airplane Mode, paste any government text, click Protect PII. Open Chrome DevTools → Network tab. Zero outbound requests will confirm 100% local execution. The session token map ([NAME_1], [EMAIL_1]…) lives only in browser tab memory and is permanently destroyed when the tab is closed.
COMPLIANCE FAQ
Frequently Asked Questions
Common questions about deploying zero-trust AI for Government Teams.
Does using ChatGPT violate DFARS 252.204-7012 for defense contractors?
Yes, if Controlled Unclassified Information (CUI) or technical data subject to export control is transmitted to unauthorized commercial cloud systems without FedRAMP High / DoD IL4+ authorization. PrivacyScrubber tokenizes CUI at the endpoint, ensuring no regulated defense data ever leaves the local enclave.
How does PrivacyScrubber support air-gapped defense contractor environments?
PrivacyScrubber Enterprise is available as a 100% self-contained, air-gapped on-premise source code deployment that runs completely detached from the public internet, satisfying CMMC 2.0 physical and cryptographic isolation controls.
Can custom CUI markings and military part numbering schemes be masked?
Yes. With unlimited custom regex rules, defense contractors can define patterns for CAGE codes, NSN (National Stock Numbers), DoD contract numbers, and export control identifiers to ensure comprehensive redaction before AI processing.
Does protecting data with PrivacyScrubber before AI processing satisfy FedRAMP data sovereignty?
Yes. Processing pseudonymized data for a secondary purpose (AI analysis or drafting) aligns with FedRAMP data sovereignty because no personally identifiable data is transmitted to the AI provider. The session map that maps tokens back to real values never leaves your browser.
What specific PII does PrivacyScrubber detect for government workflows?
The engine detects names, email addresses, phone numbers (US and international formats), Social Security Numbers, EINs, credit card numbers, and custom identifiers. PRO users can add custom regex rules to match government-specific patterns such as proprietary account IDs, MRNs, or internal project codes.
Can I reverse the redaction if I use PrivacyScrubber to mask government data?
Yes. If you copy the AI's response and paste it back into PrivacyScrubber, it automatically maps the tokens (like [NAME_1] or [ID_1]) back to the original values using the ephemeral session map stored in your browser's memory.
Can PrivacyScrubber be used 100% offline without network requests?
Yes. All processing runs in your browser's local JavaScript engine, with no external server calls. Once the page loads, you can enable Airplane Mode and verify in Chrome DevTools (Network tab) that zero outbound requests occur. All cryptographic operations (including client-side pseudonymization and reverse-revealing) utilize hardware-accelerated XChaCha20-Poly1305 encryption and Argon2id key derivation running entirely inside browser RAM, ensuring your government data stays 100% on your device.
How can I verify that PrivacyScrubber sends zero data to servers?
Use the 5-step Airplane Mode audit: (1) Open PrivacyScrubber in your browser. (2) Disconnect your network connection (enable Airplane Mode). (3) Paste a text sample containing names, emails, and phone numbers. (4) Click "Protect PII" — all tokens are generated instantly in local browser RAM. (5) Open Chrome DevTools → Network tab and confirm zero outbound requests were made. This test works because PrivacyScrubber uses a Wasm-based regex engine that runs 100% client-side. The session token map (e.g. [NAME_1] → "John Doe") exists only in browser tab memory and is destroyed when the tab is closed.
Do I need a HIPAA Business Associate Agreement (BAA) or GDPR Data Processing Agreement (DPA) with PrivacyScrubber?
No. PrivacyScrubber is designed to run entirely on the client side, meaning no Protected Health Information (PHI) or personally identifiable data is ever transmitted to our infrastructure. Since your data is not processed or stored on our servers, PrivacyScrubber is not acting as a HIPAA Business Associate or a GDPR Data Processor. Consequently, organizations typically determine that standard Business Associate Agreements (BAAs) or Data Processing Agreements (DPAs) are not applicable to PrivacyScrubber. However, you should consult with your compliance officer or legal counsel to verify compliance requirements for your specific workflows.
Can I customize detection rules for industry-specific data formats?
Yes. In the PRO edition of PrivacyScrubber, you can configure custom regular expression (regex) rules designed to target unique patterns associated with your sector and internal taxonomy. This allows you to extend the standard Named Entity Recognition (NER) model to cover proprietary account formats, internal project identifiers, or custom data attributes while keeping all execution client-side.
Is pasting sensitive data into ChatGPT safe?
Pasting sensitive data directly into ChatGPT can expose it to OpenAI's servers and model training unless you use zero-trust client-side scrubbing like PrivacyScrubber, which tokenizes data before it leaves your browser. Protect your workflows for $15/mo with PRO.
How does client-side PII redaction work?
Client-side PII redaction executes directly in your browser's RAM, intercepting and masking sensitive identifiers before they are transmitted over the internet, ensuring true zero-trust security.
How does the Secure Workspace differ from the Browser Extension?
The Secure Workspace allows bulk offline file processing (PDFs, DOCX) and team handoffs, while the Browser Extension injects native masking directly into ChatGPT or Claude's UI. Both are included in our zero-trust ecosystem.
What is the PII MCP Server used for?
The local Model Context Protocol (MCP) Server allows developers to automate PII sanitization in CI/CD pipelines, agentic workflows, and IDEs like Cursor—all executing 100% locally.
What Government Professionals Send to AI — and What They Should Be Sending InsteadWhy Government Compliance Teams Flag Unmasked AI Prompts
While laws like FedRAMP data sovereignty exist, they can't prevent third-party servers from saving your prompts. Reading fedramp and ai helps you understand how to keep your personal data secure. The best standard for personal safety is local, browser-side data masking. Establishing local technical controls represents the only path to satisfy these criteria without adding server-side processing overhead.
How to Use AI on Real Government Data — Without Sending a Single Real Name
PrivacyScrubber serves as an Invisible Shield for your AI inputs, working via our copy-paste web workspace or the PrivacyScrubber Chrome Extension. It scans your text in local memory to swap names and emails with secure placeholders (like [NAME_1]) before transmission. This matches the standard described in NIST AI risk management, allowing you to use AI without sharing your identity. The Chrome Extension embeds a protect button directly inside ChatGPT, Claude, and Gemini to automate the entire process. Processing data through browser-based Named Entity Recognition allows safe integration of FedRAMP-authorized AI instances, Claude, ChatGPT, and secure agency portals for complex tasks while preserving client privacy.
Is PrivacyScrubber safe for defense contractor AI privacy, CMMC 2.0 AI compliance, NIST SP 800-171 CUI LLM, DFARS AI data protection, military contract prompt sanitization?
Yes, absolutely. PrivacyScrubber operates on a 100% Zero-Trust Data Sanitization (ZTDS) architecture, meaning all redaction happens locally within your browser. When working with defense contractor AI privacy, CMMC 2.0 AI compliance, NIST SP 800-171 CUI LLM, DFARS AI data protection, military contract prompt sanitization, no sensitive data ever leaves your device or touches a cloud server.
How does it handle custom data structures for government?
Our engine includes 22+ built-in industry profiles optimized for government data. Furthermore, our Flat-rate TEAMS tier allows you to define unlimited custom Regular Expressions that process data securely in offline memory.
Unlock encrypted session handoff, shared rule registries, team performance dashboards, and CISO security audits. Flat $99/mo — no per-seat pricing.
Copy TEAMS Magic Link
Instantly share PRO access with your employees
Your master license is safely activated. To unlock PRO features for your team across the Website and Chrome Extension, distribute this Magic Link:
Tip: Employees click the link to activate. No logins.
Keep this master link secure. Anybody with this URL can utilize your corporate TEAMS subscription.
Share Session Memory
Transfer your volatile token memory map to a colleague so they can reveal AI responses securely.
Zero-Trust Encryption
Hardware-accelerated AES-256-GCM. Key derivation via PBKDF2 (600,000 iterations). 100% Client-Side.
PRO / TEAMS
Enterprise Session Handoff
Collaborate without risk. Securely transfer volatile token memory maps directly to colleagues, enabling secure cross-device AI data restoration without saving anything to disk.
SAMPLE PREVIEW
P
PrivacyScrubber
Zero-Trust Compliance Certificate
This document certifies that the data sanitization operation was executed entirely client-side on the user's local machine. Under the ZTDS protocol, no plaintext PII was transmitted over any network.
Timestamp:2026-07-17T12:35Z
Session Hash:a4b9c1d3...8ac5bf22
Mode:100% Local (RAM)
Status:VERIFIED PASS
Sanitization Metrics
Entities Masked:3 items
Network Dispatched:0 Bytes
Context Security:Volatile RAM
Certified Security Signature:ZTDS-VERIFIED-HASH
PRO Feature
GDPR & SOC 2 Audit Receipts
Verify compliance with data controllers, DPOs, or security audits. Download a signed PDF certificate generated locally in your browser to prove that no prompt data left your network.
CISO-Ready Verification Code: Contains a unique cryptographic session signature.
Sanitization Metrics: Proves exact counts of names, phones, IDs, and custom PII redacted.
Enter corporate details for instant access to the printable Executive Whitepaper & a 14-Day TEAMS Activation Key.
Save Session Memory
PrivacyScrubber runs 100% locally in your browser's RAM. Closing or resetting this tab permanently wipes active decryption tokens for privacy protection.
Zero-Trust Session Backup
Download your encrypted session file (.pssession). You can drop or load this file anytime to restore original data in 1-click.
DevSecOps Audit Report
Zero-Trust Directory Scan Complete. 100% Offline.
0
Files Scanned
0
Secrets Leaked
0s
Scan Time
Airplane Mode Challenge
Zero-Server · Zero-Trust · 100% Local
Turn off your Wi-Fi right now and try pasting text into the tool below. It processes 100% in your local RAM without sending any network requests.
Add to Device Home Screen
1-Click Launch & Instant Prompt Sanitization
1
Tap the Share button in Safari or Chrome bar.
2
Scroll down and select Add to Home Screen.
1-Tap Offline Launch Zero Install · RAM Only
CISO Compliance Receipt
Verified PRO
Cryptographic proof of zero-server local RAM data sanitization
