I am worried that is someone can gets into the cloud and then they can have access back into my computer system or network
access back into my computer network through the cloud. Is there a way that extra security can be added to the clouds software? Maybe Bitlocker.
If someone has access to your cloud, it's because they ALREADY have access via your network. There are also various privacy settings so one share can have a password and another can be open. You can have settings whether or not people can delete content off the share or just view. Test it with unimportant duplicates of course. This is a personal cloud, which means that it is your network cloud unlike a cloud service off the internet. You have complete control!