A major data center operator serving CME encountered technical glitches roughly 12 hours before things went south. What started as minor hiccups escalated into a full-blown cooling system failure—and just like that, global markets went dark. The incident exposed how fragile critical infrastructure can be when temperature controls fail. Trading desks worldwide scrambled as the outage rippled through financial systems. It's a stark reminder that even the most sophisticated trading infrastructure relies on basic mechanical systems that can fail spectacularly.