Microsoft announced built-in support for Cortana in Skype messenger on Android and iOS devices. Cortana is an artificial intelligence-powered smart assistant that can read your private Skype conversations. Cortana can also help you with quick suggestions, ideas and information right inside your chat window. Currently, Cortana support for Skype is only available for American users, and it is optional, and you need to turn the assistant on your mobile device manually. In-chat assistance is not a new concept. Google Allo and Facebook messenger app have already introduced AI-based personal assistant for chats, but these features come with privacy trade-offs.
Source: https://thehackernews.com/2017/10/cortana-for-skype.html