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

# Introduction

TurtleShell is a web3 initiative designed to bolster the security of DeFi protocols by introducing on-chain Firewalls also know as Circuit Breakers under the development of [EIP-7265](https://cointelegraph.com/learn/articles/erc-7265-eth-token-standard-for-defi-security) , to detect malicious activity on protocols and prevent hacks

Whenever abnormal activity occurs, TurtleShell Firewall’s offers a range of protective measures, including transaction blocking, protocol pausing, fund freezing, or controlled fund withdrawal, thereby providing a robust defence against potential hacks.