I tried to search for this. I either got a blank screen or 380 pages of topics. When I clicked next or 2 for the second page I got the "No topics or posts met your search criteria" so search is not working today for me.
Anyway, I read the data sheet for mega128 regarding flash memory protection. If I program the fuses so Flash can not be read out, can the fuses be reset by using ISP to do a chip erase? I want to protect the flash contents from being read but do not want to render the chip unable to be erased and reprogrammed at a later time. Is this possible?