+1 agree but exposing salt to the internet is not the problem. A simple ip whitelist ingress firewall rule on the salt master port would have helped, blocking a

+1 agree but exposing salt to the internet is not the problem. A simple ip whitelist ingress firewall rule on the salt master port would have helped, blocking access is also possible on this port. With cloud services it has become trivial to group server resources so that when they belong to the same group they can communicate with each other. I don’t use salt however i am not a proponent of network isolation as a form of security.