SocketSleuth is a new Burp Suite extension that improves security testing for WebSocket applications. It was created by Portswigger's security research group to aid in their security research against WebSockets, which are used for communication between clients and servers. The initial beta version of SocketSleuth includes features such as a WebSocket Connection Manager, message interception with match & replace, WebSocket AutoRepeater, and the WebSocket Intruder. These features aim to simplify the process of testing WebSocket-based applications and provide automation capabilities for tasks like authorization testing and payload insertion. With its release, SocketSleuth aims to improve security testing for WebSocket-backed applications and is available through Snyk's GitHub repository. The extension is still in its early stages but has already been found useful during research projects, and additional features and bug fixes are planned for implementation soon.