What would be the best answer to this question?

Once again your customers are concerned about the security of their sensitive data and with their latest enquiry ask about what happens to old storage devices on AWS.

What would be the best answer to this question?
A . AWS reformats the disks and uses them again.
B . AWS uses the techniques detailed in DoD 5220.22-M to destroy data as part of the decommissioning process.
C . AWS uses their own proprietary software to destroy data as part of the decommissioning process.
D . AWS uses a 3rd party security organization to destroy data as part of the decommissioning process.

Answer: B

Explanation:

When a storage device has reached the end of its useful life, AWS procedures include a decommissioning process that is designed to prevent customer data from being exposed to unauthorized individuals.

AWS uses the techniques detailed in DoD 5220.22-M (“National Industrial Security Program Operating Manual “) or NIST 800-88 (“Guidelines for Media Sanitization”) to destroy data as part of the decommissioning process.

All decommissioned magnetic storage devices are degaussed and physically destroyed in accordance with industry-standard practices.

Reference: http://d0.awsstatic.com/whitepapers/Security/AWS%20Security%20Whitepaper.pdf