Yeah right. "How can we communicate this piece of secret info?" - "Oh, that's simple. You just need to a) switch to your mobile device, if you don't have one, buy one. If you don't have mobile phone line, buy that one too while you're at it b) install a software you've never heard about before - trust me, it's ok because nobody ever had any trouble with software downloaded from internet c) send your private information - namely, your private phone number - to it d) send your private information to me e) receive my private information about my phone number - trust me, it doesn't have to be communicated securely f) get secret information sent to your mobile device g) figure out how to get this information to your desktop device now securely, it's not my problem anymore, figure it out h) figure out how to remove this information from your private mobile device. You see, much simpler than sending an email!"