Norton 360 - Received more then 500 emails for blogs I did not register...

I have Norton 360.   Today I started receiving email confirmations saying it was confirmation for newsletter, blog, email list that I had registered for which I had not.   I received over 500.   Some say respond to this email but others are just say thank you for registering.   I have attached pdf showing a few of them.

Then this afternoon, I went on Amazon and it said my password did not work.  I reintered and it went to old Amazon account.   I called them and in checking on email confirmation for item I ordered this morning, I saw order confirmation for item I had not ordered.   Gave them order number and they had already flagged it as suspecious.   

Could there me connection between these 2 events?   Has anyone else received mass amount of emais regarding confirmation of sites  you did not register with.

Thanks

Marilyn