Quick Steps To Secure Your Account(s):

1. Change the password to your effected email address immediately.
2. Reset your password for your CoinPayments account, here: http://coinpayments.net/forgot
3. Disable the permissions for all your API keys and if you use them make new ones.
4. Change your IPN Secret.
5. Check all your Coin Settings to make sure the payout settings weren't changed.
6. Check your auto sweep settings to make sure they weren't change as well.
7. Make sure 2FA is on. It's advised to switch your 2FA to TOTP/Google Auth for extra security, as someone would need to have your device to see the 2FA.
8. Save all your records including deposits and withdrawals to self preserve possible evidence in-case future legal pursuits.