CompTIA A+ Core 2 (220-1202)SecurityHard
A system administrator needs to securely erase data from several solid-state drives (SSDs) that previously held highly confidential information. The company policy requires data destruction methods that make data unrecoverable, even with advanced forensic techniques. Which method is MOST appropriate for SSDs?
- ADegaussing
- BSecure Erase (ATA Secure Erase)
- CStandard formatting
- DPhysical destruction
Show answer & explanationAnswer & explanation
Correct answer: D. Physical destruction
For SSDs containing highly confidential data where unrecoverability is paramount, physical destruction is the most reliable method. While Secure Erase is effective, physical destruction guarantees data cannot be recovered, even if the Secure Erase process theoretically fails or is incomplete.
Why the other options are wrong
- A. Degaussing uses strong magnetic fields and is ineffective for SSDs as they store data electrically, not magnetically.
- B. Secure Erase (ATA Secure Erase) is an effective method for SSDs, but physical destruction offers the highest assurance for highly confidential data.
- C. Standard formatting only removes pointers to data, making it easily recoverable.
Physical Destruction (SSDs)
Physical destruction for SSDs involves rendering the storage media unusable by methods such as shredding, crushing, or incineration, ensuring that data is absolutely unrecoverable.
- The most secure method for data destruction on SSDs, especially for highly sensitive data.
- Prevents any possibility of data recovery, even with advanced forensic tools.
- Methods include shredding, pulverizing, or melting the drive.
Memory trick: SSDs need shredding for ultimate security.