Help with Spotify!

So I can crack and get the spotify account no problem that's super easy it's the part that is keeping the other people out of the accounts I have cracked is their anyway I can make it harder for them to get back into the account if not impossible? Any help/advice is appreciated

You already answered your own question. You are cracking THEIR accounts that THEY have paid for. They can and always will have access to it unless you manage to get their email and changed their access to that.