How can I be sure that nobody can “capture” the messages I send?
We can’t make sure the messages you send are “invisible” nor that nobody can capture them. What we can do is to make sure that they are “unreadable”. All the communication is encrypted with industry standard high-security AES-256 bit encryption. This means, that even someone captures your messages, he/she is unable to read the content. This security is applied to all communication – text chat, voice, file transfers etc.