> ## Documentation Index
> Fetch the complete documentation index at: https://docs.databunker.org/llms.txt
> Use this file to discover all available pages before exploring further.

# Architecture

> In today’s digital landscape, protecting sensitive customer data isn’t just about compliance—it’s about building trust. Databunker Pro offers a next-generation secure vault for personal data (PII/PHI/KYC), combining robust encryption, tokenization, and privacy management in an enterprise-ready platform.

## Core architecture overview

**Backend storage**

* **PostgreSQL**: Reliable, secure backend for encrypted data storage. Supports multi-tenancy using RLS.
* **MySQL**: Secure backend for encrypted data storage. Supports multi-tenancy.
* **Oracle**: Secure backend for encrypted data storage. Supports multi-tenancy.
* **Redis**: Used for encrypted storage of session information for faster, secure access.

**Encryption and key management**

* **Two-layer encryption**: Master encryption key secured by a separate wrapping key.
* **Wrapping key rotation**: Rotate without re-encrypting all stored data.
* **Shamir’s Secret Sharing**: Backup the wrapping key securely across multiple trusted parties.

**Privacy management**

* **DPO portal** for oversight and reporting.
* **Consent management**, **audit trails**, and **data minimization** features built-in.
* **One-click personal data reports** and full processing activity logs for compliance.

**Scalability and deployment**

* **Stateless architecture** for easy horizontal scaling on Kubernetes.
* **High availability** with multi-instance deployment and database failover readiness.
* **Container-based deployment**: Docker, Docker Compose, and Kubernetes templates included.
* **Multi-jurisdiction deployment** — for global organisations subject to data-localisation laws in multiple countries, the recommended pattern is to run one Databunker Pro instance per jurisdiction, unified for operations via [Databunker DPO](https://databunker.org/use-case/dpo-management-portal/). See [Multi-jurisdiction deployment](/pro/concepts/global-deployment).

**Integration**

* Available client libraries for **PHP**, **JavaScript/TypeScript**, **Java**, and **Python** to simplify integration.
* For SaaS and database connectors used in data-subject-rights and DPO workflows (Salesforce, HubSpot, MailChimp, MySQL, PostgreSQL, Oracle, SQL Server), see the separate **Databunker DPO** product in the Databunker Portal.

<img src="https://mintcdn.com/databunker-a1572a73/qL-_zKq-_GLjhX3S/pro/get-started/databunker-diagram.png?fit=max&auto=format&n=qL-_zKq-_GLjhX3S&q=85&s=1bc2c4a9baa75dcc7f144c7a6a7f6be1" alt="Architecture diagram" style={{ backgroundColor: '#FFF'}} className="rounded-lg" width="1993" height="1044" data-path="pro/get-started/databunker-diagram.png" />

## Security architecture deep dive

**Data protection**

* **SSL/TLS encryption** for all API and database communication.
* **AES-256 encryption** at rest for all personal data.
* **Secure hash-based indexing** for searchable fields like email, phone number, and login names.
* **Zero clear-text storage** of sensitive information.

**Access control**

* Fine-grained, token-based API authentication.
* Multi-tenant separation is supported on PostgreSQL, MySQL, and Oracle. On PostgreSQL it uses native Row-Level Security (RLS).
* Default prevention of bulk data extraction.

**Threat protection**

* SQL injection prevention, API rate limiting, and session hardening.

**Key management**

* Wrapping key rotation and Shamir’s Secret Sharing-based key backups.

***

# Specialized data protection features

## PII / PHI / KYC Data Tokenization / User Table Replacement

Databunker Pro enables secure tokenization for full personal profiles (PII/PHI/KYC):

* Accepts complete user profile JSON objects and generates a single token representing the full profile.
* Builds secure hash-based search indexes automatically for searchable fields (e.g., email, phone number, login names), allowing efficient, privacy-preserving lookups.
* Dynamic token expiration options, supporting both sliding and final expiration modes.
* Tokens can be safely stored and used across internal systems without revealing sensitive information.

## Credit card tokenization

For sensitive payment data, Databunker Pro offers dedicated credit card tokenization capabilities:

* Each credit card is tokenized into a secure, unique identifier.
* Supports **unique token generation** (same card → same token if enabled).
* Dynamic token expiration options, supporting both sliding and final expiration modes
* **Bulk tokenization support**: tokenize multiple credit cards efficiently in a single API request, with per-record expiration and validation.

***

## Real-world applications

Organizations across industries use Databunker Pro to protect critical personal data:

* **Financial Services**: Safeguarding customer PII while maintaining regulatory compliance.
* **Healthcare Providers**: Protecting PHI with HIPAA-aligned security controls.
* **E-commerce Platforms**: Managing customer data with GDPR compliance and strong privacy controls.
* **SaaS Providers**: Implementing true multi-tenant security for user data.

***

## Why Choose Databunker Pro?

Databunker Pro is more than just encryption — it’s a **privacy-by-design** foundation for modern organizations. With its advanced encryption model, built-in privacy controls, scalable architecture, and rich integration ecosystem, Databunker Pro empowers you to protect sensitive data, comply with regulations, and earn customer trust.