Microsoft app logs you into Windows 10 using your phone
 

Windows 10 already does a lot to spare you from typing in your password, but Microsoft wants to take that text-free login one step further. The company has quietly posted a beta Phone Sign-in app for Windows 10 Mobile that, as the name suggests, sign...

http://www.engadget.com/2016/03/09/w...n-in-by-phone/