Re: Photorec
Some work has been done recently into hacking sd card firmware. This is done by legitimate retailers to indicate a drive manufactured as 32gb sd with lots of bad blocks is only 16 gb in size. Miscrecreants can increase the size. I suspect with similar software tools you could get access to data on bad blocks that would never be presented to the OS for deletion or wiping running standard firmware.
Biting the hand that feeds IT
