

Went on the public tour of our local waste-treatment facility. Really fascinating stuff. Highly recommend it if you’re even slightly curious.
There are definitely industrial-scale automation systems. Mostly PLCs, but also SCADA for monitoring. Lots of 20-30 year-old tech. Those networks have no reason to be connected to the internet.
But there were also office equipment and personal devices everywhere. All it takes is for someone wanting to monitor the state of a digester on their laptop from home.
You just crossed the beams.


























Reminds me, I should go through my old box of DVDs and do some cleaning.