There’s lots of article on this just google If you want to make sure, just delete the files in question and write a program that opens a file, writes about a 1 mb string of zeros to it , then closes it Repeat until disk is full. Then delete the files that were created. Disk was about 20 mb capacity, so it shouldn’t take long.
Sent from my iPhone > On May 3, 2025, at 13:53, Brian Knittel via cctalk <[email protected]> > wrote: > > Passing on a request: anyone know of a way to erase user data off a Mac SE > hard disk that will leave the disk and Mac OS intact? The machine works and > could go to a new home but has privileged medical data on it so just deleting > files isn’t sufficient — the free space has to be overwritten. Are there any > utilities available on floppy disk that could do it? Plan B is taking a > sledgehammer to the drive, but seems a waste to go right to euthanasia if > there’s another option. >
