Before we parted ways, Sabien told me he had something he wanted to show me. He passed me his phone. On the screen was a quote attributed to Nathaniel Borenstein, who I vaguely recalled as one of two men who invented the email attachment, the invention so many nation-states now used to deliver their spyware. “The most likely way for the world to be destroyed,” it read, “most experts agree, is by accident. That’s where we come in; we’re computer professionals. We cause accidents.”

