HIDE A SECRET
FLASH DRIVE IN AN
INNOCENT AA CELL.
BY ANDREW LEWIS
KNOWLEDGE IN POWER: This hollow AA cell conceals
a USB drive and uses a watch battery for “cover.”
Keeping secret documents out of enemy hands can be a challenge,
especially if the bad guys are in the habit of stopping and searching you.
Encryption is one thing, but it’s the art of steganography (hiding messages)
that will ultimately save you from a small, hot room with no windows.
This project shows you how to make a USB flash data, looks just like a normal AA alkaline cell, and
memory battery useful for storing secrets far from shows 1.5V if you test it. It’ll even power small
prying eyes. The battery can store a gigabyte of electronic devices.
Photograph by Garry McLeod
80 Make: Volume 16