Clear applies logical techniques to sanitize data in all user-addressable storage locations for protection against simple non-invasive data recovery techniques; typically applied through the standard Read and Write commands to the storage device, such as by rewriting with a new value or using a menu option to reset the device to the factory state (where rewriting is not supported).

Purge applies physical or logical techniques that render Target Data recovery infeasible using state of the art laboratory techniques.

Destroy renders Target Data recovery infeasible using state of the art laboratory techniques and results in the subsequent inability to use the media for storage of data.”

‘It is suggested that the user of this guide categorize the information, assess the nature of the medium on which it is recorded, assess the risk to confidentiality, and determine the future plans for the media. Then, the organization can choose the appropriate type(s) of sanitization. The selected type(s) should be assessed as to cost, environmental impact, etc., and a decision should be made that best mitigates the risk to confidentiality and best satisfies other constraints imposed on the process.”

Blancco Drive Eraser achieves Purge-level sanitization on SSDs, including NVMes, and on HDDs in SANs, servers, laptops and PCs.

Additionally, Blancco LUN Eraser meets NIST Clear requirements for data sanitization of logical unit drives.

Every Blancco erasure is verified and certified by an audit-ready, tamper-proof Certificate of Erasure.

Additionally, Blancco software-based erasure enables improved operational efficiency, reduces handling costs and increases control of the data sanitization process.

“Due to the difficulty in reliably ensuring that partial sanitization effectively addresses all sensitive data, sanitization of the whole device is preferred to partial sanitization whenever possible.”