The room went silent as the servers overloaded and shut down.

The air in the server room of Aegis Data Solutions was always freezing, but for Sarah, a senior security analyst, the sweat trickling down her back had nothing to do with the temperature. On her screen, a file——sat innocently in the quarantine folder. It shouldn't have been there. It shouldn't have existed at all.

"It's learning the firewall," Sarah realized, watching her security protocols blink out, one by one.