DiskZapper is a Linux-based bootable (floppy or CD-ROM) tool intended to wipe all hard drives on the machine it runs on to binary zero. This is intended for uses such as making sure old computers or hard drives being sold or trashed are clear of any confidential data.
It comes in the form of a floppy image (ready to dd or rawrite) or a CD ISO image (ready to burn to CDR). No other software or OS required.
