Which of the following is the BEST method to delete sensitive information from storage media that will be reused?
Which of the following is the BEST method to delete sensitive information from storage media that will be reused?
The best method to delete sensitive information from storage media that will be reused is multiple overwriting. This involves writing random data over the storage media multiple times, effectively destroying any previously stored data and making it extremely difficult to recover. Re-partitioning and reformatting do not guarantee complete data removal as some data fragments can still be recovered. While crypto-shredding can be effective, it relies on strong encryption and key management, and may not be suitable if the data wasn't originally encrypted.
option D - Multiple overwriting. Multiple overwriting involves writing random data to the storage media multiple times, effectively destroying any previously stored data. This method is highly effective in ensuring that sensitive information cannot be recovered from the storage media. Re-partitioning (option A) and reformatting (option C) involve deleting the file system information and/or the partition table, but may leave some data fragments intact and could potentially be recovered using advanced recovery techniques. Crypto-shredding (option B) involves encrypting the storage media and then deleting the encryption key, making the data unreadable. While this method can be effective, it requires the use of strong encryption and proper key management to ensure that the data cannot be recovered.
Answer is D, Crypto-shredding works only on encrypted storage
D is the correct answer
Crypto-shredding, also known as cryptographic erasure, involves encrypting the entire storage media and then securely deleting or discarding the encryption key. This process makes the data effectively irretrievable, even if remnants of the encrypted data are left on the storage media. Crypto-shredding is considered a secure and efficient method for protecting sensitive information during the decommissioning or reuse of storage media.
d is answer because it will be recycle disk