Huntington Bank: Redacting sensitive data from 400M+ documents with AWS

In this post, we walk through how Huntington built a scalable AWS solution to detect and redact Personally Identifiable Information (PII) and Payment Card Industry (PCI) data from over 400 million documents, reducing processing time from years to just a few months while achieving 95%+ redaction accuracy.

Source: AWS ML Blog | 2026-06-24