This is the where you have installed and configured 3NCRYPT3D Secure Application.
It is extremely important because this is the device used to:
- generate the Encryption Key that will be used to protect your messages and attachments;
- Authorize any other device where you wish to use the Secure Application via a QR Code
If you already have the application configured in another device, you must promote it to Primary before de-authorizing the previous one.