Snapchat's expired snaps are not deleted, just hidden

Snapchat doesn't delete expired photos on Android phones – it merely tells the operating system to ignore them

Forensic researcher Richard Hickman has discovered that Snapchat photos on Android phones are merely hidden, not deleted, and are still available for retrieval with the right forensic software. He concluded that "metadata is stored for Snapchat images, as shown by the com.snapchat.android_preferences.xml file, and that it contains metadata about expired 'snaps' as well as unexpired 'snaps', and that images that are sent via Snapchat are indeed recoverable, and do not 'disappear forever'."

read more..........http://www.theguardian.com/media-network/partner-zone-infosecurity/snapchat-photos-not-deleted-hidden