GuardKey USB Encryption Dongle Makes Military Grade Encryption Easy as Plug-and-Play

Encrypted with 256-Bit AES, GuardKey Unlocks Hard Drives and Cloud Drives when Plugged-in and Locks Them Down when Removed

January 26, 2016 – Taipei, Taiwan – Changingtec, the information security experts, are introducing a new kind of hassle-free encryption device for consumers. The GuardKey USB encryption dongle lets anyone easily secure their files with military-grade 256-bit encryption, and decrypt them by simply plugging the GuardKey into their computer. Rather than being limited to the amount of data on a USB stick, GuardKey secures any number of files and folders on the host computer, external drives connected to the computer, or even data stored on the Cloud.

Plug-and-Play Encryption with GuardKey and SafeBox Technology

GuardKey makes military-grade encryption easy. Make a SafeBox folder on the drives you like and everything stored inside is automatically secured with 256-bit AES encryption. To access files, simply plug in the GuardKey and the SafeBox is decrypted. When finished, unplug the GuardKey and the SafeBox not only locks up again but disappears from the file explorer.

Extra Security with 256-bit AES and Two-Factor Authentication

The hardware-based authentication of GuardKey eliminates the problem of weak user passwords vulnerable to brute force attacks and provides hassle-free encryption and decryption using military grade 256-bit AES. For extra security, GuardKey can be paired with a password for two-factor authentication so even if your GuardKey is stolen, your data remains secure.

Protect Multiple Drives, Computers, and Even the Cloud

With GuardKey’s SafeBox technology, a single GuardKey can secure multiple hard drives, external drives, or even Cloud-based storage. Installed Cloud services such as Google Drive, DropBox, OneDrive, and more are automatically detected and configured without the need for user intervention and can be immediately used with GuardKey.

Mobile Access and Photo Lock

With the GuardKey Viewer mobile app, users can bind their GuardKey to a mobile phone, allowing them to securely access files stored on their encrypted Cloud-based storage. Photo Lock lets mobile users easily encrypt and decrypt photos, keeping their personal images secure from hackers.

Instructional Video

To see how easy it is to use GuardKey, view the instructional video.
Guardkey User Guide:
Guardkey Viewer APP:
Back up your Guardkey:


GuardKey is available now on Amazon. For details and specifications, visit the GuardKey website.

About ChangingTec

Founded in April 1998, Changingtec is a software subidiary of Wistron Group dedicated to the development of information security technology with a focus on data encryption, identity authentication and digital content recognition.

ChangingTec's product and service offerings are based on its core technologies in Public Key Infrastructure (PKI), One-Time Password (OTP), Secure Cloud Computing, and Digital Signatures. As a leader in information security as well as document digitization in Taiwan, ChangingTec's clients include the major corporations such as TSMC and Acer computer, government agencies including the National Security Bureau of Taiwan and Financial Supervisory Commission of Taiwan, and it has an 80% market share in the banking and financial sector.

With extensive in-house research and development resources, strong core competencies and a wealth of experience, Changingtec is ready to provide excellent solutions to meet market demands with its core product lines of network security and document image recognition tools as well as innovative new products for the mobile business era such as GuardKey.