How does Hawala Messenger work and how can it be useful? It is an encryption tool, not a messenger app like Telegram or WhatsApp. You encrypt your message inside the app, copy the encrypted text, paste it into any messaging app, and send it. You can also set a shared password with the recipient. Once the recipient receives the encrypted text, they paste it into the decryption field, enter the agreed-upon password (if one was set), and reveal the message. It never passes through any big tech data center, and even if intercepted, it is impossible to decrypt without the password. It uses the same security as Bitcoin's encryption.