I was watching a market ticker scroll past the other day — numbers flickering red and green faster than I could actually read them — when it hit me that somewhere in that blur, real money was changing hands between people who had never met, would never meet, and in most cases weren't even people at all. Just a "buy" and a "sell" button, and somehow, in less time than it takes to blink, millions of dollars had moved. I wanted to know what was actually happening in that gap, so I started looking into it. What I found was a system built almost entirely to hide its own complexity behind two deceptively simple buttons. The Button Doesn't Talk to Anyone You'd Expect The first thing that surprised me is that when you click "buy" on a trading app, your order almost never goes directly to a stock exchange. Instead, according to how brokers describe their own order-routing practices, your order is typically sent first to a market maker — a firm whose ent...
Picture this: it's May 2021, and gas stations up and down the US East Coast are running dry. People are filling plastic bags with gasoline. Panic buying, news choppers, a state of emergency. And the whole thing traces back to one login. One password. No second factor. That's the moment I stopped reading this as "cybersecurity history" and started reading it as something closer to watching the same story resurface again and again, wearing a different disguise each time. An experiment that got out of hand Start at the beginning, 1988. A Cornell grad student named Robert Morris writes a program just to see how far it can travel across the early internet. He's not malicious. He's curious. He miscalculates one variable, and the thing spirals past what he intended, chewing through roughly 6,000 machines, choking universities and government networks that had never seen anything like it. Here's the part that got under my skin: the flaws Morris exploited weren...



