Pocket-sized to securely carry your most sensitive data wherever you go, the Aegis Padlock 3 is 100% hardware-based 256-bit AES XTS encrypted. The onboard keypad USB drive is PIN authenticated. All Data in this hardware encrypted hard drive is encrypted on the fly and the PINs and Data remain encrypted while the drive is at rest. Completely cross-platform compatible and OS agnostic, the Padlock 3 thrives with Windows, Linux, Mac, Android, and Chrome. It also thrives where software-based encrypted drives won't even function, such as embedded systems, machinery, and any equipment in possession of a powered USB port and storage file system. All internal componentry of this keypad USB drive is protected from physical tampering with a layer of hardened epoxy, and the firmware is locked down which prevents any modifications making it immune to malware attacks, such as BadUSB.