Windows 7 Popup Issue on Hotmail Account: Possible Security Concern?

[Peterr]

Hello
Starting today, when I go to my live account(Hotmail), this popup appears above the taskbar for a moment then disappears. I have not yet had a chance to see what my options are but I think they are; cancel, allow, acceppt.
I have run my Norton's Security Suite but nothing was there.
I was trying out a new Kindle and it uses WIFI and my secure network. I had to spend some time trying to figure it out.
Could this have led to a problem?
It only occurs at the Hotmail site.
I Googled it and it talked about cross scripting but I saw mention of a security breach.
Do you have an understanding of what this is and what to do about it?
Thank you
Peter

 

[NoelDP]

Try installing MalwareBytes Anti-Malware (www.malwarebytes.org - free version) - download and insta it, then update it (but do NOT activate the Real-Time Protection), and run a Full system scan.
See what it finds.