Means to erase a storage device, such as a computer hard drive,
so thoroughly that no residual data can be collected from the device. Old
computer disks should be sanitizedÂ—and not only superficially erasedÂ—before
they are thrown away in order to avoid the possibility that a cracker can
obtain any valuable information from scavenging through an organizationÂ’s
garbage (electronic dumpster diving).