At 9:30 am on a Wednesday in late September, a hacker who asked to be called Tom Smith sent me a nonsensical text message: “query voltage recurrence.”
Those three words were proof of a remarkable feat—and potentially an extremely valuable one. A few days earlier, I had randomly generated those terms, set them as the passphrase on a certain model of encrypted USB thumb drive known as an IronKey S200, and shipped the drive across the country to Smith and his teammates in the Seattle lab of a startup called Unciphered.
Unciphered’s staff in the company’s Seattle lab.
Photograph: Meron Menghistab
Smith had told me that guessing my