It is technologically impossible to prevent Snapchat users from saving or copying images they receive from other Snapchat users. Replace "Snapchat" with any oth

It is technologically impossible to prevent Snapchat users from saving or copying images they receive from other Snapchat users. Replace "Snapchat" with any other app here and the same principle applies. Their proposition is not that this is impossible, but rather that it is not easy for a typical end user to see past images. This enables a form of ephemeral communication; it was never intended as a security feature, simply a communication feature.