In order to make data deletion truly permanent, it is necessary to use a special device called a degausser (a magnetic furnace) which utilizes advanced demagnetization technology. High intensity of the magnetic field ensures that the data is irrecoverably and permanently deleted. Unlike software deletion of confidential data, the hardware solution removes data permanently without damaging the drive and is therefore suitable for instance when sending drives for warranty repairs. Testing of the Active Kill Disk – Hard Drive Eraser tool showed that a single erasing cycle of a 160 GB drive took 3.5 hours (three cycles are recommended). When a demagnetizer was used, the whole erasing process was several times faster.
Our company use degausser ProDevice ASM120 Basic, which meets standards for cecure deletion by these regulations: