Choo-Shoo pwn explained

...A detailed analysis of the security status of widely-used ICS/Scada systems, including railway and interlocking CBCS, has identified faults and vulnerabilities, which allow cyber criminals to not only degrade key reliability parameters and bypass safety mechanisms, but also to carry out attacks which directly affect rail traffic safety. Remarkably, these systems meet all of the relevant IT security and functional safety requirements and all have the required international, national and industrial certificates...

Friends don't let friends put SCADA on the Internet. At least tried...

220,558 Internet-connected ICS components worldwide

188,019 unique hosts (IP addresses)

170 countries (~82% of all)

HTTP is still most widespread industrial protocol

50,3% HTTP

13,4% Telnet

9,3% Niagara Fox

7,6% SNMP

7,4% Modbus