Which data sanitization method is most environmentally friendly while ensuring data on SSDs is unrecoverable?

The most environmentally friendly method of data sanitization that ensures data on Solid State Drives (SSDs) is unrecoverable is the cryptographic erase method. Here are the steps:

1. Cryptographic Erase: This method involves using the drive’s encryption algorithm to sanitize the data. The drive is encrypted from the moment it is manufactured, and this encryption key is unknown and not recorded. When a cryptographic erase is performed, the original encryption key is deleted and a new one is generated. This makes the data that was encrypted with the old key unrecoverable.

2. Environmentally Friendly: This method is environmentally friendly because it does not involve any physical destruction of the drive. The drive can be reused after the cryptographic erase, reducing electronic waste.

3. Secure: Cryptographic erase is a secure method of data sanitization. Since the original encryption key is not known and not recorded, the data cannot be recovered once the key is deleted.

4. Verification: After the cryptographic erase, you can verify that the data is unrecoverable by trying to access the drive. You will not be able to access the data without the original encryption key.

5. Reuse: After the cryptographic erase, the SSD can be reused. This not only reduces electronic waste but also saves money as you do not need to purchase a new drive.

Remember, while this method is secure and environmentally friendly, it is important to ensure that the drive’s encryption feature was enabled from the moment it was manufactured. If not, some data may still be recoverable.