Windows 10

Stop Windows 10 from sharing your Wi-Fi password

Wi-Fi sense can automatically connect to different Wi-Fi network and it can share you Wi-Fi password with your contact (outlook, skype etc.). By default it is enabled. So you can disable it for additional security.

You can use below steps to disable Wi-Fi sense:-

Settings->Network and internet->WI-FI-> Manage Wi-Fi settings->Wi-Fi Sense

Off both the options as per your choice

Connect to suggested open hotspot

Connect to network shared by my contacts