I started receiving MongoDB Management Service emails today saying this: "Host is exposed to the public Internet". Apparently these checks are run on the 1st and 15th of the month, and today is the 1st. I looked here for more information but it didn't really help me.
I have my personal website running at andrewkoroluk.com. I am running an Express NodeJS server there, hooked up to port 80. In it, I use a MongoDB database for various data such as authentication, website data, files, etc. I have
mongod always running. I am making an API that manipulates the data in my MongoDB database, but I doubt that that is what triggered these alerts.
Should I be worried about these alerts?