Remove PII from Data Streams

Achieve compliance while preserving analytics value.

The Problem

User events contain PII that creates compliance risk:

• Credit cards (PCI-DSS violations)
• Emails and IPs (GDPR/CCPA violations)
• Precise locations (GDPR violations)

Without removal: massive fines, audit failures, data breaches.

The Solution

Learn 4 PII removal techniques:

1. Delete - Remove credit cards, precise coordinates (no analytics value)
2. Hash - One-way transform IPs and emails (preserve uniqueness for counting)
3. Pseudonymize - Replace names with IDs (preserve relationships)
4. Generalize - Coordinates → city names (preserve regional trends)

Get Started

Choose your path:

→ Interactive Explorer

See each technique transform real PII data

→ Step-by-Step Tutorial

Build the pipeline incrementally:

1. Delete Payment Data
2. Hash IP Addresses
3. Hash Email Addresses
4. Pseudonymize Users
5. Generalize Location

→ Complete Pipeline

Download the production-ready implementation