Usually, in the case of Node-Red encryption, encryption of the flow is usually possible.
Similarly, is there a way to access the dashboard only by entering account access information, just like encryption is applied to the flow when accessing the Node-Red UI screen?
There are many ways to go about it. It just depends on the value of what you are trying to protect and how much effort you want to put into it. If you are looking for a full-blown solution to manage it for you, check us out at FlowFuse.