What data sanitization method involves destroying the decryption key to make data recovery impossible?

The data sanitization method that involves destroying the decryption key to make data recovery impossible is referred to as "crypto erase." This method is particularly effective because, when the decryption key is destroyed, the data that was encrypted with it becomes irretrievable. Essentially, the data itself may still exist on the storage medium, but it is rendered useless, as there is no way to decrypt it without the key.

Crypto erase is an essential technique in data protection, especially when decommissioning storage devices or ensuring compliance with data privacy regulations. By utilizing this method, organizations can ensure that sensitive information cannot be accessed or recovered, thereby significantly minimizing the risk of data breaches or unauthorized access to confidential information. This contrasts with other methods of data sanitization, which may not provide the same level of certainty in preventing data recovery.