WiDy is an open source Wi-Fi Attack and Defense platform created to run on the extremely cheap ESP8266 IoT platform. We’ve written a simple framework which you can hack and create your own tools or automate attack/defense tasks. We also provided code to bring the concept of deception to WiFi area. WiDy was launched in Blackhat Asia 2017 Arsenal and received good response from the audience. WiDy 2.0 release contains several major improvements over initial version.