You want to erase sensitive data for ever?
The Digital Shredder is the most secure and convenient method of erasing hard disks. Other methods, such as overwriting software, demagnetising or the mechanical destruction of the medium, are usually more laborious and do not guarantee absolute security.
Nobody wants company or private data to get into the wrong hands.
There are many different methods and shredder tools for erasing hard disks. They differ in respect to safety, time involved and user-friendliness. The established methods for erasing hard disks do not guarantee that sensitive data will be erased completely.
Methods for erasing data
Overwriting using software
Overwriting software writes random, complex and meaningless data onto all accessible areas of the hard disk. The software is loaded onto a computer or server and then executes the overwriting process. Most overwriting tools repeat this process several times.
Originally, these processes were developed to erase disks and magnetic tapes. A hard disk is demagnetised by subjecting it to a strong magnetic field. The polarity of the magnetic
medium changes, which effectively deletes the data. This method has some unwanted side effects: the resulting electromagnetic radiation can affect electronic equipment in the vicinity. In addition, the demagnetising process is hazardous to health, and so has to be carried out outside of the office or in an insulated environment.
This term is open to a variety of interpretations. Many professional and commercial shredding service providers use their own techniques to reduce hard disks to small particles. Some companies that do not employ professional shredding service providers rely on dubious methods; they use 20 ton presses or sledgehammers, or disassemble the device and grind the hard disks.