Yeah, I don&#x27;t see how this is devastating for WhatsApp - you simply verify the other party&#x27;s key once and then good to go, if it ever changes you&#x27;ll get a big scary warning (you&#x27;ll get that anyways but you should still verify the key in case your initial session was compromised). Admittedly I&#x27;ve only worked with Signal, but I&#x27;m assuming WhatsApp offers similar as they hired the same devs.<p>Am I missing something here? I don&#x27;t see how this attack would be useful against end-to-end encrypted messaging apps (well, properly implemented ones at least).