Architecture
1. Encryption keys are never stored on device or server
Almost all authentication technology stores your private keys locally for authentication purposes, Cryptaphone does not, keys are never stored locally or on the server, which means there is no key to hack/ steal to access your data anywhere.
Additionally, you can use very sophisticated keys and multiple keys for each conversation. With high entropy key generation, the keys used are impossible to predict or guess by systems trying to crack encrypted data.