# External Data Sharing End to End

Share Kafka topics with companies you don't control, without giving anyone direct access to your cluster. Payment processor Oscorp receives credit card transactions from one external partner and shares filtered results with another, all through Conduktor Gateway. The full walkthrough, from the architecture to what's stored on disk.

## What You'll Learn

- Isolate each partner in their own virtual cluster with friendly topic names, layered on top of network isolation and ACLs
- Enforce producer standards, filter what each consumer sees with SQL topic views, and encrypt and mask sensitive fields
- Block malformed records with data quality policies and route them to a dead letter topic the producer can debug