Kraken is an all-in-one brute-force attack toolkit that can be used for network protocols, web applications, and directories.Key features of Kraken include finding hidden directories, passwords, and sub-domains of websites and network protocols.To install Kraken, you can use the git package and follow the provided command in the installation guide.Once installed, Kraken can be launched from the command line, and you can select a specific tool by entering the corresponding number.