Sharing a Wi-Fi password in a room or office isn't exactly a herculean task. One can write it down, for example. It can, however, certainly be made easier. And by easier, Microsoft means automagical. That's why it invented Wi-Fi Sense as a way to easily share Wi-Fi credentials with friends so that they can easily connect to the same network you're on. Sounds convenient? Probably, but considering the way things are going right now, it might also be a security nightmare waiting to happen.