Using less than $100 worth of gear—including a Raspberry Pi Zero W, a small battery, and a cellular modem—the X-Force Red team assembled a mobile attack platform that fit neatly within a cardboard spacer dropped into a shipping box or embedded in objects such as a stuffed animal or plaque. At the Black Hat security conference here last week, Ars got a close look at the hardware that has weaponized cardboard.

Hack in the box: Hacking into companies with “warshipping”