PrivacyScrubber ZTDS Guard

PrivacyScrubber ZTDS Guard (Plane 6 of the PrivacyScrubber ecosystem) enforces the Zero-Trust Data Sanitization (ZTDS™ RFC v1.0) protocol on WordPress contact, patient intake, legal consultation, and financial onboarding forms.

When a visitor submits a form on your WordPress site, sensitive data frequently flows into third-party webhooks (Zapier, Make), CRM systems (HubSpot, Salesforce), Slack notifications, and AI triage bots (OpenAI, Anthropic Claude). PrivacyScrubber ZTDS Guard intercepts the form submission inside the visitor’s browser RAM (<0.4ms) during the DOM capture phase—before fetch() or XMLHttpRequest sends data over the network.

Dual-Envelope Architecture

1. Public Envelope (Sanitized Form Fields): Sensitive identifiers (Names, Phone Numbers, Emails, Payment Cards, SSN/National IDs, IBANs, Medical Record Numbers, Tax IDs) are replaced in-memory with deterministic tokens such as [NAME_1], [PHONE_1], [EMAIL_1], and [SSN_1]. Downstream CRMs, email notifications, and AI triage agents process the inquiry with zero exposure to raw PII/PHI.
2. Private Vault Envelope (_ztds_vault_payload): The original cleartext mapping is encrypted inside the visitor’s browser using native WebCrypto (AES-256-GCM + PBKDF2-SHA256) and attached as a sealed hidden payload. Authorized administrators can decrypt and reveal original entries in 1 click inside the WordPress Admin dashboard using their local browser key.

Supported Form Builders

• Contact Form 7 (form.wpcf7-form)
• WPForms (form.wpforms-form)
• Elementor Forms (form.elementor-form)
• Gravity Forms (.gform_wrapper form, form[id^="gform_"])
• Fluent Forms (form.fluentform)
• Custom HTML / AJAX Forms (via data-ztds="true" or custom CSS selectors in Settings)

Key Architectural Guarantees

• Zero External Network Egress: 100% of detection, tokenization, and encryption executes locally in the visitor’s browser (window.crypto.subtle). Zero bytes of form content are ever transmitted to PrivacyScrubber or third-party servers.
• Fail-Open Business Continuity: If a legacy browser lacks WebCrypto support or encounters a custom DOM exception, the interceptor gracefully bypasses tokenization so your business never loses an inbound lead.
• Statutory Risk Minimization: Technical & Organizational Measure (TOM) supporting GDPR Article 32 pseudonymization, HIPAA Safe Harbor (45 CFR § 164.514(b)), and PCI-DSS v4.0 intake hygiene.

External Services & Privacy Disclosure

This plugin executes 100% locally in the visitor’s browser and does not transmit any form data, visitor PII, or telemetry to any external server. Optional verification badge links to https://privacyscrubber.com/integrations/wordpress/ and https://ztds.ai/ are strictly controlled by the site administrator under Settings -> PrivacyScrubber ZTDS.