It has been revealed that if you own an iOS device, parts of your WhatsApp conversations may not have been deleted from your phone, a security researcher has said.
Jonathan Zdziaraki a researcher who specialises in the Apple operating system said in a blog “forensic trace of all chats is left on the device even when the chats have been deleted, cleared, or archived.”
He went on to say that deleted Whatsapp chats could be recovered using forensic tools as the information had not been overwritten on your device.
Zdziarski says “Simply preserving deleted data on a secure device is not usually a significant issue, but when that data comes off the device as freely as Whatsapp’s database does; it poses a rather serious risk to privacy.”
As part of his research, the Zdziarski analysed SQLite records stored on a test phone database once messages had thought to be deleted.
He found that the library is not automatically overwritten and therefore data files fail to be deleted
