Firebase : Prevent same account on multiple devices
问题 I'm working on an angular app and I use Firebase to authenticate my users. I would like to know how I could prevent my users to give their account to other people. Also I would like to prevent people to use the same account to login from different devices at the same time. I found some very good tutorials to build a presence system, but these system doesn't prevent the same account to be used by many different people on several devices. I have been able to check if a user is trying tu use an