Signet HC Secure Flash Drive, Authentication Tool

Meet the Signet HC: a secure flash drive built on open source and hardware that can work as a two-factor authentication device. You can also use it as a hardware password and information manager. Its client is compatible with Windows, MacOS, GNU/Linux, and Android.

Signet blocks any malicious software from executing commands on the device. It implements physical security by requiring the user to press its button to permit the execution of any sensitive command. The button flashes blue when any sensitive command is sent.