How to answer the Discord bot verification question “how do you secure your infrastructure”?

Question

Bots

there's an explanation on the Discord server:
Wondering what we mean by "how do you secure your infrastructure"? Well, it's simple. How do you restrict access to your bot? As before, if we want to know more about this, we will ask.

but it's still not clear how to answer this question, I'm using Heroku hosting.
Are there any examples or something similar?

Answer 1

How about:
"I restrict access to my functions by encrypting and simply requesting certain permissions to use certain commands/functions"