How can you destroy floppy disk information before disposing of them?

Answer 1

There are two primary methods of destroying floppy disk data: shredding and degaussing.Shredding simply involves cutting the diskette (or at the very least, its internal magnetic medium) into pieces so small that reassembly would be realisically infeasible. If the disk is not intended to be used anymore, this solution tends to be simpler and cheaper.

Degausing is a process by which the diskette is subjected to strong magnetic fields that alter the disk's magnetic medium, effectively erasing it. Lengthy or multiple passes are typically enough to render the data within beyond the reach of all but the most determined adversary. While degaussing typically calls for a dedicated device for the purpose (while any magnet can theoretically be used, there is a problem with consistency), one advantage is that the medium itself is still useable and can even be re-purposed after it has been erased, allowing it to be sent elsewhere instead of just trashed.