The talk includes couple of demos of WebSockets usage in civilian and hacking applications, and goes into details of protocol dissection and performance benefits that it may bring. Analysis of current WebSockets usage is performed and data showing not-so-widespread adoption is presented. Security aspects of WebSockets are discussed including few shortcomings of current implementations and browser related issues. Also, on the spotlight are the complications that may arise from WebSockets mixed usage with HTTP, as well as the problems that network protection infrastructures will face because of the masking of WebSockets data. It closes with recommendations for deploying WebSockets securely, applying security principles to web app design.