Well everybody know´s that hacking IC´s can be really hardcore at least if you need to recover data that is only aviable on the chip and he source is lost.
For 400 Usd you can recover your Rom or Flash content on your own. All you need is a modded microscope and a SLR cam with 10-18mpx.
This example is a really bad once… too much rest of dirt on it but you can see the column ^^.
After remove the top layer or meshes you have access to it. With a grid you can analyze the dot´s and convert them to hex. Thats very easy on AVR or PIC.
For high security mostly you only can image encrypted binarys.