Make credit/debit card more secure.

There should really be some sort of 2fa/authentication required for buying nitro or server boosts, I've been token logged a couple of times and had my card charged by some random person who was on my account and used my card to buy nitro and server boosts from themself. I think it's pretty insecure to have no auth or backup while buying something, if someone has access to your account, they have access to your card (sort of).

I think they should one: add some sort of backup/2fa that can be for either email or phone number verification

or two: have cards saved locally sort of like how gifs do and go away if you log out or log in somewhere else.