An unknown person is capable of contacting people using the new Windows 10 desktop in the form of a notification.
I received a notification at 11:52 AM EST on my Windows 10 desktop saying that Kyleigh Bqq would like to add me to Skype: Hi live:higherrankings I would like to add you as a contact. I don't know how I was reached in the first place by this person since I do not have or ever owned a Skype account and my online activities are so limited (No facebook, no personal page, no linkedin profile...just google, Wikipedia and youtube). It is categorically impossible this was some previous acquaintance.
I never accepted his/her/its contact request so I can't say for sure if it's just an honest mistake or ill intended. I am just writing this because I can imagine someone less computer literate than me accepting the request and assuming it's all fine and well since it came in the form of a desktop notification. If it's a scam, people can be more trusting depending on how it started and if it will become a foot in the door for spammers, I can imagine Windows 10 becoming a great source of irritation for all its users.