How do I open doors or use switches/devices that say “blocked by SHODAN security”?
You have to reduce the overall security percentage of the level. This can be done by destroying cameras and CPU nodes on that level (the CPU nodes can be found clustered in one room somewhere. They are usually pretty well guarded). If you want to find out the current security percentage, use the “system analyser” device (press the hardware inventory button at the bottom of the screen and then select the “STATUS v1” item).