The component tetraguard.device & more protects against unauthorized reading and copying of data (internal and external) from and to different removable data carriers, such as CD/DVDs, USB sticks or MP3 players. When tetraguard.device & more is used, interfaces such as IDE, USB or Firewire remain open so that keyboard, mouse, printer, scanners, etc. function without any difficulty. However, outbound data flows are encrypted.
Authorization keys can be used to individually clear this function on the workplaces for a specific period of time to enable data transfer from and into the company network.
If a data carrier is transferred within the company from one employee to another, the encrypted data are automatically recognized and decrypted. The data are only readable outside the company when they are written with specially deployed authorization keys (inserted USB token).
tetraguard technology has the following advantage: it does not lock any computer interfaces (for instance IDE, USB, Firewire), but instead analyses the data flow, encrypts while copying and decrypts during reading automatically. It doesn't need to access any whitelists which would usually involve complicated administration. This enables keyboard, mouse, printer, scanners, etc. to function without any problems because the system differentiates between their data flow and that of the tetraguard USB stick.