
Description: VulnHub is a platform that provides vulnerable virtual machine images for use in information security learning and training. The VMs can be used to practice penetration testing and ethical hacking techniques safely and legally.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Hack The Box is an online platform that provides a variety of virtual machines and challenges focused on pentesting skills and security. It allows users to practice hacking skills in a legal environment.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API