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False Positive detection for Bing.com
I think that the False Positive for Bing is more widespread than for just Bing and MSN. I got the same notification 3 times when I went to AOL for Verizon customers on Friday night EDT. When I checked out the IP mentioned, it showed it belonged to Microsoft. It was the same malware which you mentioned in the Announcement you created.
Have a Nice Day and