The email address on file for an Amazon.com account should never be used anywhere else for anything.
There are multiple reports, spanning years, of attackers abusing the Amazon chat system to scam customer support representatives into divulging your personal information. All the scammers need is a victims name and email address.
For years now, Amazon has known about this security hole in their procedures and done nothing about it.
Original URL: http://www.computerworld.com/article/3027244/security/defending-yourself-from-amazon-com.html#tk.rss_all