Wix Road, Beaumont
Essex, CO16 0AT
01255 871 111
| Oak Business Park Wix Road, Beaumont Essex, CO16 0AT 01255 871 111 |
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For information on our Newsletter |
Secure Data Destruction and PC Recycling  Many operating systems, file managers, and other software provide a facility where a file is not immediately deleted when the user requests that action. Instead, the file is moved to a holding area, to allow the user to easily revert a mistake. Even when an explicit deleted file retention facility is not provided or when the user does not use it, most computers do not actually remove the contents of a file when it is deleted. Instead, they simply remove the file's entry from the file system directory, because this requires less work and is therefore usually faster. The contents of the file—the actual data—remain on the storage medium. The data will remain there until the operating system reuses the space for new data. In some systems, enough file system metadata is also left behind to enable easy undeletion by commonly available utility software. Even when undelete has become impossible, the data, until it has been overwritten, can be read by software that reads disk sectors directly. Computer forensics often employs such software. Likewise, reformatting, repartitioning or reimaging a system is not always guaranteed to write to every area of the disk, though all will cause the disk to appear empty or, in the case of reimaging, empty except for the files present in the image, to most software. Finally, even when the storage medium is overwritten, physical properties of the medium may make it possible to recover the previous contents using laboratory techniques. There are three levels commonly recognized for eliminating remnant data: Clearing Clearing is the removal of sensitive data from storage devices in such a way that there is assurance that the data may not be reconstructed using normal system functions or software file/data recovery utilities. The data may still be recoverable, but not without special laboratory techniques. Clearing is typically an administrative protection against accidental disclosure within an organization. For example, before a floppy disk is re-used within an organization, its contents may be cleared to prevent their accidental disclosure to the next user. Purging Purging or sanitizing is the removal of sensitive data from a system or storage device with the intent that the data can not be reconstructed by any known technique. Purging, proportional to the sensitivity of the data, is generally done before releasing media outside of control, such as before discarding old media, or moving media to a computer with different security requirements. Destruction The storage device is physically destroyed by incineration, melting, shredding, pulverizing, drilling or other means that completely prevent data recovery. Contact us today with your requirements – immediate or future – and one of our specialists will call you back to discuss your needs. 01255 871 111 Email: Micrologic at Oak Business Park Wix Road, Beaumont, Essex, CO16 0AT |
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