Packet sniffing is mitigated by TLS/HTTPS. The point of end to end is to to ensure that only me and the person I'm sending a message to can read it and that no

Packet sniffing is mitigated by TLS/HTTPS. The point of end to end is to to ensure that only me and the person I'm sending a message to can read it and that none of the systems in-between us can read the plain text of it.