Does anyone else remember when it was possible to extract snapchat messages that haven't been viewed yet because they had some ridiculously easy to find encryption key, hardcoded in the app? It was found running 'strings' and trying each one for the key and boom, one little script and you could just do this really easy for a long time even after knowledge of how to do it had been made public. This was so long ago, not sure what they did to change this at all -- No surprise at all they don't random-out the files here.