USBATTERY
HIDE A SECRET FLASH DRIVE IN AN INNOCENT AA CELL.
KNOWLEDGE IN POWER: This hollow AA cell conceals a USB drive and uses a watch battery for “cover.”
Photograph by Garry McLeod
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 memory battery ...
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