These days you have to assume hackers have read the engineering new hire guide that you wrote up. The SSH port will probably be in there. A big tech company wi

These days you have to assume hackers have read the engineering new hire guide that you wrote up. The SSH port will probably be in there. A big tech company will have tens of thousands of current and former employees. Those employees may try to break in, and all the easily accessible internal wikis or other common resources are going to end up on some hacking forum somewhere eventually.