We shred every hard drive into small fragments eliminating the possibility of any data retrieval. Erasing your hard drives does not guarantee that the information has been erased. Those who really want to retrieve data from hard drives that are still in whole form have the ability to do so with the right tools. That puts you and your company at risk.
The only way to make sure your data is gone is to physically shred the drive.
It is now recognized by most IT professionals that degaussing or wiping hard drives is no longer an acceptable method for complete, secure destruction of stored data. Deer Valley Data has specialized machines that shred high volumes of data storage devices, including hard drives, while fully complying with the certification standards of the National Association for Information Destruction (NAID).