Darik’s Boot and Nuke (DBAN) is an open source (GPL) “self-contained boot floppy that securely wipes the hard disks of most computers” In the future I plan to carry a DBAN floppy with me to wipe hard drives prior to installing my own NSM software. The About screen on DBAN offers warnings and caveats, and the About screen offers warnings. It boasts some impressive features too. When you boot from the floppy image or CD-ROMiso you see this screen.”]
Source: https://taosecurity.blogspot.com/2005/11/deleting-hard-drives-today-subject-of.html