#include 
This seems contrived. So you need to send someone "evil" code that they won't read, have them compile it as root, and then ship you the resulting binary.I wouldn't read too much into it "working" with some kind of compile/show service, as they could have been using non-persistent containers.Ultimately this seems like social engineering i.e. "Tricking privileged users into doing  as root." Might have well ask them to cat /etc/shadow and email you the "nonsense" it prints.https://devblogs.microsoft.com/oldnewthing/20180227-00/?p=98...