Industry Use Case

Keep Customer Data Off AI Servers.
On Your Machines, Where It Belongs.

When your support team troubleshoots orders, your marketing team analyzes customer segments, or your operations team processes refunds, customer names, emails, addresses, credit card numbers, and purchase histories get pasted into AI tools. Shield is a local gateway that redacts that data before it ever leaves your network, keeping your customers' information on your machines, where PCI DSS, GDPR, and CCPA expect it to stay.

The Short Answer

Every time an e-commerce employee pastes a customer's credit card number, home address, or purchase history into ChatGPT, Claude, or any AI tool, that data leaves your network and lands on a third-party server. Shield runs locally on your machines and automatically detects and redacts that sensitive data before the API call goes out , so the AI provider never receives it. The redacted placeholders are rehydrated on your machine when the response comes back, and your team never notices the difference.

See It in Action: Real E-Commerce Scenarios

AI data exposure in e-commerce is a practical problem that happens every day, when support agents troubleshoot orders, returns teams process refunds, and marketing teams analyze customer data. Shield catches what its packs match, automatically, at the network edge.

Customer Service Agent Troubleshooting a Failed Checkout

A customer calls because their order won't go through. The support agent uses an AI tool to analyze the order details, pasting the customer's name, shipping address, credit card information, and order contents into the prompt.

RAW PROMPT, SENT WITHOUT SHIELD

Customer order failing at payment step. Order #ORD-88241-K, customer: Jennifer Park, email: jennifer.park@gmail.com, phone: 415-555-0183. Shipping to 1227 Marina Blvd, Apt 5C, San Francisco CA 94123. Cart: 2x Nike Air Max (SKU NK-AM-992, $129.99 each), 1x Apple AirPods Pro (SKU AP-APP-440, $249.99). Subtotal: $509.97, tax: $44.12, shipping: $12.99. Card on file: Visa ending 4291, exp 11/27, CVV 847. Billing address matches shipping. Payment gateway error: "DECLINED, DO NOT HONOR". Check if this is a fraud flag or a bank decline.

REDACTED, SENT WITH SHIELD

Customer order failing at payment step. Order #[ORDER_ID], customer: [PERSON_NAME], email: [EMAIL], phone: [PHONE]. Shipping to [ADDRESS]. Cart: [QUANTITY]x [PRODUCT_NAME] (SKU [SKU], [PRICE] each), [QUANTITY]x [PRODUCT_NAME] (SKU [SKU], [PRICE]). Subtotal: [AMOUNT], tax: [AMOUNT], shipping: [AMOUNT]. Card on file: Visa ending [CARD_LAST4], exp [DATE], CVV [CVV]. Billing address matches shipping. Payment gateway error: "DECLINED, DO NOT HONOR". Check if this is a fraud flag or a bank decline.

What Shield Caught — 8 sensitive data points

PII, NameJennifer ParkPII, Emailjennifer.park@gmail.comPII, Phone415-555-0183PII, Address1227 Marina Blvd, Apt 5C, San Francisco CA 94123PCI, Card4291PCI, Security847PCI, Card Expiry11/27PII, OrderORD-88241-K

Shield is a local gateway that sits between your e-commerce tools and every AI provider

It doesn't matter whether your team uses Shopify, a custom platform, or a spreadsheet, if the AI request goes through Shield, sensitive customer data gets redacted before it leaves your network.

A regulatory compliance framework is a set of rules that defines how you must handle customer data

E-commerce businesses face overlapping data protection requirements from PCI DSS, GDPR, CCPA, and the FTC. Each framework requires you to protect customer information, and AI tools create a new vector for exposure. Shield maps directly to these requirements.

Framework	Requirement	How Shield Helps
PCI DSS 4.0.1	Any organization that stores, processes, or transmits cardholder data must comply with PCI DSS. Sending payment card numbers, CVVs, or full track data to an external AI model violates Requirement 3 (protect stored cardholder data) and Requirement 4 (encrypt transmission across open networks).	Shield redacts payment card data before it leaves your network. The AI provider receives only placeholders like [CARD_LAST4] and [CVV], never the actual card numbers. This keeps cardholder data within your PCI DSS scope and eliminates the need to assess AI providers as part of your cardholder data environment.
GDPR (EU Customers)	E-commerce businesses selling to EU residents must comply with GDPR requirements for personal data protection, cross-border data transfers, and data processor agreements. Pasting EU customer data into an AI tool constitutes a cross-border data transfer to the AI provider.	Shield's local redaction ensures that EU customer personal data never crosses borders. The AI provider receives only placeholders, not actual personal data. This eliminates the need for Standard Contractual Clauses or data processing agreements with AI providers for the redacted data categories, because the provider never receives personal data.
CCPA / CPRA (California)	Businesses handling California residents' personal information must provide disclosure, access, and deletion rights. Sharing customer data with AI providers may constitute 'selling' or 'sharing' under CCPA, triggering opt-out requirements and data protection assessments.	Shield prevents customer personal information from reaching AI providers in the first place, so no 'sharing' occurs. This simplifies your CCPA compliance posture: your privacy policy doesn't need to list AI providers as third-party data recipients because they never receive identifiable customer data.
FTC Safeguards Rule	The FTC requires financial institutions, including many e-commerce businesses that extend credit or process payments, to protect customer information through administrative, technical, and physical safeguards. AI tools create a new vector for customer data exposure.	Shield acts as a technical safeguard at the network edge. Every redaction event is cryptographically logged, creating an auditable trail that demonstrates your organization's data protection controls. This supports your annual FTC Safeguards Rule assessment with verifiable evidence.
State Data Breach Notification Laws	All 50 U.S. states have data breach notification laws requiring businesses to notify affected individuals when their personal information is compromised. If customer PII is exposed through an AI provider's systems, notification obligations may apply.	Shield prevents customer PII from reaching AI provider systems, eliminating a vector for breach notification obligations. If the AI provider itself experiences a breach, your customer data isn't there to be exposed, because Shield ensured it never left your network in identifiable form.

PCI DSS 4.0.1

Payment card data protection standard

Any e-commerce business handling cardholder data must comply with PCI DSS 4.0.1. When a support agent pastes a customer's credit card number into an AI tool, that cardholder data is leaving your controlled environment, creating an immediate compliance gap that would fail a PCI assessment.

Source: PCI Security Standards Council

3+ Frameworks

Privacy regulations apply to e-commerce AI use

E-commerce businesses must navigate PCI DSS, GDPR (for EU customers), CCPA (for California customers), and the FTC Safeguards Rule (for businesses handling financial data). Each framework imposes data protection requirements on how customer information is shared with third parties, including AI providers.

Multiple regulatory bodies, PCI SSC, EU Commission, CA AG, FTC

Zero

Customer data leaves your network

Shield runs locally on your machines, no cloud processing, no vendor data access. Customer names, emails, addresses, payment information, and purchase history never reach external AI providers. The redaction mapping stays on your machine, within your security boundary.

Shield operates entirely within your network boundary

Common Questions

Yes. Shield directly supports PCI DSS Requirement 3 (protect stored cardholder data) and Requirement 4 (encrypt transmission of cardholder data across open, public networks). When an e-commerce employee sends a prompt containing a customer's credit card number or CVV, Shield redacts it before the data leaves your network. The card number never reaches the external AI provider, so it's never transmitted across an open network in cleartext. Shield also logs every redaction event with a cryptographic hash, supporting your audit and monitoring requirements under Requirement 10.

Yes. When your e-commerce business sells to EU customers, pasting their personal data (names, emails, addresses, order histories) into an AI tool constitutes a cross-border data transfer to the AI provider. Shield prevents this by redacting EU personal data locally, before any API call leaves your network. The AI provider receives only placeholders, not actual personal data. This eliminates the need for Standard Contractual Clauses or Data Processing Agreements with AI providers for the redacted data categories, because the provider never receives personal data in the first place.

Yes. Shield's filter packs can be configured to detect and redact not just PII and payment data, but also customer behavioral data, purchase history, browsing patterns, wishlists, loyalty program tiers, and lifetime value scores. These are commercially sensitive data points that e-commerce businesses invest heavily in building. When your marketing team uses AI tools to analyze customer segments, Shield ensures the underlying customer data stays on your machines. The AI can still help with analysis based on aggregated patterns without ever seeing individual customer profiles.

Shield operates at the API proxy layer. It sits between your AI client and the LLM provider. It doesn't need to integrate with any specific e-commerce platform. As long as the AI request flows through Shield's local proxy, sensitive data is redacted regardless of which platform generated it. Whether you're copying order details from Shopify admin, WooCommerce dashboard, or a custom-built platform, Shield catches the sensitive data before it leaves your machine.

Shield complements your payment processor's security, but doesn't interfere with it. Your payment processor handles the actual transaction flow (card capture, tokenization, settlement). Shield protects a different vector: the AI tools your team uses alongside those processors. When a support agent is troubleshooting a Stripe payment and pastes transaction details into ChatGPT, Shield redacts sensitive data from that prompt. Shield and your payment processor work at different layers of the stack. Shield at the AI API boundary, your processor at the payment network boundary.

Shield installs on any Mac, Windows, or Linux machine. You set one environment variable. SHIELD_PROXY_URL, and every AI call from that machine routes through Shield automatically. No code changes to your e-commerce platform, CRM, helpdesk, or analytics tools. For team deployment, Shield supports enterprise configuration management so your IT team can roll it out across customer support, marketing, and operations with consistent policies and centralized audit collection.