Bug reveals 'deleted' Snapchat videos

Going through the filesystem and finding supposedly 'deleted' images and videos is in no way 'reverse engineering', as claimed by Mr. Spiegel (although Apple most likely would like you to believe that), it's just a normal Possibility one must account for when creating an App such as Snapchat/Poke.

"[...] those who enjoyed the service the most would not go to such lengths to view videos." - Maybe not the intended users, but with a Smartphone connected to a Malware-Infected PC, possibilities for spreading of those "supposedly deleted" pictures open up.