Just had this message pop-up from my Sygate Personal Firewall when I accessed Hotmail after clicking a link to email someone from within MSN Messenger.
Somebody is scanning your computer. Your computer's UDP ports: 1904, 2006, 2027, and 2122 have been scanned from 64.4.12.201..
I tried the same thing again, but no warning occurred.
WHOIS shows MS Hotmail Why would Hotmail be scanning those ports?
Bearing in mind I am behind a Draytek 2600 NAT router, and running a software firewall, I am intrigued to say the least.