The most important point is "treat your cloud account like you treat your local wallet(s)".
Please do pay attention when creating your cloud account. make sure you can remember those credentials (all of them) including the precise security details depending on which ones you select. In general I recommend to add a "random image" (something that isn't on your facebook, twitter and co) to your salt which will make it impossible to crack. Add a password and a pin and you're good to go.
Once your account is created setup your GHwallet with a normal BTC account and one BTC account dedicated to manage your assets (or one for each asset, whatever). Again make sure you will remember the password and pin for each address and backup your private keys.
if you have your account details, a wallet backup and your private keys then your GHcloud account is as secure as any local wallet on your system. Only you can either destroy it, lose access or recover it, nobody else.
I guess you supplied a smart asset address with your order? If so you would receive payouts to that address and you can check and monitor "everything" on https://cloud.gethashing.com
You can also track a Coinprism address via GHcloud. To do so just add the address to the settings. If you have more than one "exernal" smart asset address you can add them all by separating them with a comma.
An asset address local to GHcloud doesn't require to be added to the settings. The system will pick that one up by itself.
Yeah we don't want to get a call from the Bitcoin Foundation that we broke the Blockchain... 