Managing personal Outlook.com account settings, security, and privacy
I just want to add to this conversation that I have just received the emails discussed twice over the last couple of days -- citing unusual login activity from Russia with the credential cited in the discussion above. The information I got from this discussion was really helpful. I logged into the https://account.live.com/Activity and discovered there was no successful login from Russia (one unsuccessful from Vietnam!). I am, however, changing my password! Does not seem that Microsoft has addressed this issue.