# Documentation

> Index of the Documentation documentation.

## Guides

- [Introduction](https://docs.checkoutsecurity.net/guides/introduction.md): Overview of Checkout Security — a multi-platform WordPress fraud protection plugin stack with a core-plus-adapter architecture.
- [Installation](https://docs.checkoutsecurity.net/guides/installation.md): System requirements, installing the core plugin and connectors, activation, and adapter health checks.
- [Setup Wizard](https://docs.checkoutsecurity.net/guides/setup-wizard.md): Walk through the Checkout Security setup wizard for initial configuration after installation.
- [Quick Start](https://docs.checkoutsecurity.net/guides/quick-start.md): Get Checkout Security protecting your checkout in 5 minutes with essential settings.
- [Fraud Detection](https://docs.checkoutsecurity.net/guides/fraud-detection.md): Multi-factor fraud detection with risk scoring and progressive response actions.
- [Trust & Whitelisting](https://docs.checkoutsecurity.net/guides/trust-and-whitelisting.md): Customer trust scores, IP whitelisting, auto-whitelisting, and device fingerprinting.
- [Order Review & Risk Queue](https://docs.checkoutsecurity.net/guides/order-review.md): The Risk Queue, under-review order status, manual approve/reject workflow, and customer payment-link flow.
- [CAPTCHA Challenges](https://docs.checkoutsecurity.net/guides/captcha.md): CAPTCHA challenge system with support for reCAPTCHA v2/v3, hCaptcha, and Cloudflare Turnstile.
- [Rate Limiting](https://docs.checkoutsecurity.net/guides/rate-limiting.md): Rate limiting for checkout, API, login, admin, and admin AJAX endpoints to prevent abuse and brute force.
- [Threat Intelligence](https://docs.checkoutsecurity.net/guides/threat-intelligence.md): External threat intelligence with IP reputation, VPN/proxy/Tor detection, provider manager, and circuit breaker.
- [WooCommerce Connector](https://docs.checkoutsecurity.net/guides/woocommerce-connector.md): Install and configure the Checkout Security WooCommerce adapter for WooCommerce 5.0+ with HPOS compatibility.
- [Easy Digital Downloads Connector](https://docs.checkoutsecurity.net/guides/edd-connector.md): Install and configure the Checkout Security EDD adapter for Easy Digital Downloads 2.9+.
- [FluentCart Connector](https://docs.checkoutsecurity.net/guides/fluentcart-connector.md): Install and configure the Checkout Security FluentCart adapter for FluentCart 1.8.0+.
- [Privacy & GDPR](https://docs.checkoutsecurity.net/guides/privacy-gdpr.md): WordPress privacy exporter/eraser integration, data anonymization, retention, log cleanup, and encryption.

## Developer Guide

- [Architecture](https://docs.checkoutsecurity.net/developer/architecture.md): Core-plus-adapter architecture, platform registry, boot sequence, adapter health gate, and interface contracts.
- [Hooks & Filters](https://docs.checkoutsecurity.net/developer/hooks-and-filters.md): All public actions, filters, and scheduled events for extending Checkout Security.
- [API Reference](https://docs.checkoutsecurity.net/developer/api-reference.md): Public classes and methods for CCP_Core, CCP_Fraud_Detection, CCP_Risk_Threshold, CCP_Trust_Score, CCP_Platform_Order, CCP_Threat_Intel, CCP_Rate_Limiter, CCP_IP_Whitelist, and CCP_Captcha.
- [Settings Reference](https://docs.checkoutsecurity.net/developer/settings-reference.md): Complete reference of all Checkout Security configuration options with option names, defaults, and descriptions.