CompTIA CySA+ (CS0-002) — Question 353

A company wants to ensure confidential data from its storage media files is sanitized so the drives cannot be reused. Which of the following is the BEST approach?

Answer options

• A. Degaussing
• B. Shredding
• C. Formatting
• D. Encrypting

Correct answer: B

Explanation

Shredding is the most effective method for ensuring that data on storage media is completely irrecoverable, making the drives unusable. Degaussing can corrupt the data but may not always be effective on all types of drives. Formatting simply prepares the drive for reuse by removing file references, while encrypting only secures the data without destroying it.