Create a separate account for holding Secure / Super Node stakes. Do not operate in Full Mode. You may wish to add a Wallet Password, as an additional security measure. Make sure that you have an accurate record of your Account Name, Account Password, Wallet Password, and Backup Phrase. Horizen cannot retrieve any of this information for you. It is your responsibility to securely record this information. Storing this information on a computer is a bad practice.
Verify Your Backup Phrase
Create three transparent address and send a trivial amount of ZEN to each. Create another Account for the purpose of testing your Backup Phrase. Verify that you can Restore your addresses into the wallet of this Account and that the balances are correct. Do not operate this account in Full Mode