Kill a live Microsoft Office 365 session

Thanks for getting back to me so quickly.  I'm shocked that Microsoft doesn't have a way of doing this given that people often forget to log off!

If i change the password, does that connection disconnect immediately?  if not, how long until it does?

I don't know whether you work for Microsoft or not, but this is a big problem.  Users log on to their email from all different kinds of locations.  They cannot be depended on to logoff.   i don't think I'll be moving my users to Office 365 until I can log them off from an admin portal or something....

Very helpful information.  Thank you so much!