Comment by darkwater

> And it doesn't open up anything new in phishing. I already get emails like this from health care providers, asking me to open the email contents on their site. Obviously you need to figure out if the URL is legitimate, the same way you always have.

Yes it does. If sending an almost empty mail with a link to somewhere else becomes the norm, a link that must be clicked because it's most probably going to contain an important message, you are just making it much more of a routine to open links like that. And those could be phished (yeah, like everything else, that's obvious)