1. Two-factor authentication
2. Code card
3. Login history
4. Login shield
5. Login notification
6. Active login
So there are no chances to be hacked.
Are you the coinremitter owner, by the way?
I've never heard of numbers 2, 4, and 6, and the rest of these points are just standard operating procedures any web service should have.
2,4,6 are unheard of he should educate us on these security features do Coinremitter apply all of these, too much security will confuse users, and checking Coinremitter sign-up page https://coinremitter.com/signup you have the option to sign up using Google or Facebook something that is not secure, there has been reporting of Facebook accounts hacking.
2FA, email verification if logging in on a different IP is already ok.
The payment gateway should spend on a secured connection and encryption suited for the payment gateway like Geotrust
https://www.geotrust.com/