There was an e-mail sent to my email yesterday regarding of this issue.
The title of the e-mail is
Statement on the Email Privacy Issue Impacting Our Users.
.
The e-mail was sent has content about the the recent issue of bitmex which was the email addresses exposed.
There was also instruction how we can be safe of this issue like it was stated and much suggested to create a new account with new email address, setting up 2FA, etc.
I also got curious when they give some link to their website especially to the register page, there is a referral link embedded to the e-mail was sent. That's why I started to think it this e-mail is not legit