> For the complete documentation index, see [llms.txt](https://aacross.gitbook.io/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://aacross.gitbook.io/docs/aa-+-cross-chain-docs.md).

# AA + Cross-chain DOCS

Modular Smart Accounts & Cross-Chain Security Guide

Welcome to **AA + Cross-Chain DOCS**, the comprehensive security guide for developers building with modular smart accounts and cross-chain intents.

This documentation is created by the **UMA team** at [**Upside Academy**](https://upside.center/), providing essential security guidelines and best practices for implementing Account Abstraction with cross-chain functionality.

This guide covers the integration of smart account(normal or modular) with cross-chain intent frameworks, focusing on security considerations, potential vulnerabilities, and mitigation strategies. Whether you're building cross-chain applications or implementing modular account systems, this documentation will help you understand and address the unique security challenges that emerge when these powerful standards work together.