Let's say old laptops.. mem cards.. CDs.. cameras.. I understand no matter how well u vandalise it in this urban setting, in which u r not able to burn it in furnace or hammer ir into powder etc.. because u simply dont have the space to deal with it.. so there is always a possibility of people who manage to take away the wreck.. harvest the flash memory silicons and retrieve some data out of it.
How does one do it?
How does one do it?