When you create a Cyphr account, you are creating a unique key pair made of a private and public key. In single-device mode, your unique private key and messages are local to that original device. In order to enable multi-device and securely deliver your messages to new devices, you need to encrypt your private key with a passphrase.
If you need any further assistance, please contact support and we'll be happy to help!
Last reviewed/updated June 2019