It wasn't a driver sending data. It was a tiny, encrypted payload: 512 bytes, exactly. Destination IP? It wasn't going to the internet. It was being routed internally—from the USB controller to the System Management Bus (SMBus), the low-level bus that controls voltage regulators, fan speeds, and—most critically—the BIOS flash chip.
Leo traced the command structure. The "all clear" signal was tied to a specific Microsoft update catalog number that didn't exist yet. But the absence of that signal was keyed to something else: a unique processor serial number fused into the AMD Ryzen's silicon. mediatek usb port v1633
There it was, nestled under "Universal Serial Bus controllers," between the generic Intel(R) USB 3.1 eXtensible Host Controller and the familiar USB Root Hub. It wasn't a driver sending data
He was going to keep it. As a souvenir. And a warning. It wasn't going to the internet