I am selling cheap un-migrated minecraft accounts as well. You can change the email, pass and security questions and secure your account.
skype:mikewaals
How to Secure/Migrate the account:-
1. Login into mojang account and browse to https://account.mojang.com/migrate
2. May you have to go to settings to change email - change email, pass and secure(change security questions) your account
3. Once email change, you will receive mail to verify it. Click it in your mail and that is all. You got yourself your own account.
4. Enjoy!!!!
Thanks,
Mike
Proofs attached:-