Von Nutzern erstellte Inhalte sind verschlüsselt, und dieser Dienst kann sie nicht entschlüsseln.
The service claims that user-generated content is end-to-end encrypted, meaning only intended recipients can access or decrypt it. As a result, no unauthorized parties, including the service itself, can view the content.
This does not necessarily cover meta data, such as the date of creation or sender and recipient information.