Shameless self-promotion :)

[nccdhelton]

https://www.youtube.com/watch?v=ZfUBv2Ac29Q

^^^ Here's a talk I gave at Cackalackycon 2019 in Raleigh titled "A Gentle Introduction to Hacking Mainframes"

My sole original contribution to z/OS hacking is figuring out that, if you get root in Unix and backdoor a sysprog's account with your SSH key, you can SSH in as him/her, without having to know their password, and can run privileged tsocmd commands and escalate your privs on the MVS side.

[samanL33T]

That's awesome.
I've added this to the list.