My organization currently sends out emails directing our customers to login and view information on a customer portal site we have developed. The content of these emails is usually pretty generic since we prefer to send all confidential information to our customers through this secure website.
I have recently been asked if we should eliminate all URLs that link to our customer portal from the emails that we send out. The justification for this request is to deter attempts to hack our customer portal. Since this request came from executives and not security experts I would like your opinions. Would this in any way decrease our chances of our customer portal being attacked?
One more piece of potentially useful information is that a link to this customer portal is published at the bottom of our public website.