# Overview

## The CPA Vault

**Guardian** is the fully PCI/DSS compliant card data vault service within Hellgate CPA.

It enables secure tokenization, storage, and use of sensitive payment credentials — giving you full control of a PCI environment without needing to build one from scratch.

### 🔐 Core capabilities

- **Tokenization**: Securely tokenize PANs and other sensitive data
- **Compliance Service**: Use tokenized data in a secure way with your processors
- **Network Tokenization** (Add-on): Provision and manage tokens with schemes like Visa and Mastercard
- **Account Updater** (Add-on): Keep card-on-file data current with issuer-provided updates
- **Enrichment & Metadata** (Add-on): Enrich vault entries with issuer metadata, bin intelligence, and more


### 🏗️ Use Guardian when...

- You want hassel free PCI/DSS compliane in no time
- You rely on tokenized data and it needs to be yours as it is strategic
- You need to decouple your PCI responsibilities from your payment flows
- You're managing multi-PSP setups and want centralized vaulting
- You want to own the data layer behind your orchestration logic
- You're preparing to migrate or consolidate card-on-file strategies