Wi-Fi Sense allows you to automatically log your friends onto your Wi-Fi network without ever giving them your password. It’s a convenient solution to the awkward “what’s your Wi-Fi password?” conversations.
Microsoft enables Wi-Fi Sense by default on Windows 10, but it doesn’t share your networks by default. You have to actively choose to share your Wi-Fi network by clicking a box that says “Share network with my contacts” when logging in.
When you share your network, all of your Facebook friends as well as your Skype and Outlook.com contacts will be able to automatically log onto your Wi-Fi network when their Windows 10 PCs are in range.And when your friends connect via Wi-Fi Sense, they won’t then, in turn, be able to share your network with their friends.
Wi-Fi Sense stores your Wi-Fi network password on a Microsoft server. It’s encrypted, so if a hacker were to break in, your password would appear as garbled text. And Windows 10 does not allow you to share access to corporate Wi-Fi networks that use special security protocols.