See #43 and the following statement from our Hosting Provider: Data deletion on physical storage devices. If a disk drive used for storage suffers a hardware failure, it is securely erased or destroyed before Microsoft returns it to the manufacturer for replacement or repair. The data on the drive is completely overwritten to ensure that the data cannot be recovered by any means. When such devices are decommissioned, they are purged or destroyed according to NIST 800-88 Guidelines for Media Sanitation.