Here's the live recording link for those who missed it and are too impatient to wait for the cleaned-up one: https://streaming.media.ccc.de/38c3/relive/233cb1d4-4833-538...
The "...Derail" portion of the slogan references Newag's handout shown a few seconds earlier in the presentation.
Lessons learned?
Lawsuits are temporary, glory is forever.
Go public.You do NOT fuck with the safety system.
Sure, it's not the mission critical safety system and you're only reading it, so what's the harm? Well, one of these days someone doing that is going to typo == into a =, or whatever the PLC version of one-character oopsie is.