I have Norton Security and I am not getting this message
They are the best in my opinion and warn me about so many problems I could get into. I have the middle level of coverage and you may have top but even then, I'm sure they would see the need to let me know. I don't know what is could be.
I'm sure any of us could post a link that seems legit and not know that it is not or like they said never heard of it to check on it.. I would call them.