Learn about sanitization, the most effective data removal technique for wiping sensitive data from hard drives. Securely erase drives while allowing reuse.
Table of Contents
Question
Which of the following is a common data removal option for companies that want to wipe sensitive data from hard drives in a repeatable manner but allow the hard drives to be reused?
A. Sanitization
B. Formatting
C. Degaussing
D. Defragmentation
Answer
A. Sanitization
Explanation
Sanitization is the best data removal option for companies that need to securely wipe sensitive data from hard drives in a reliable, repeatable manner while still allowing the drives to be reused afterwards.
Sanitization thoroughly erases all data on the drive by overwriting it with random data patterns multiple times. This makes recovery of the original data virtually impossible, even with advanced forensic techniques. Sanitization is done in a consistent, standardized way to ensure all sensitive information is fully removed every time.
In contrast, formatting or defragmenting a drive does not actually erase the underlying data and it may still be recoverable. Degaussing, which uses powerful magnets to erase drives, makes them unusable for future use.
For companies that must adhere to strict data removal policies but still want to be able to repurpose wiped hard drives, sanitization provides the ideal balance of security and reusability. It is the go-to method for thoroughly removing sensitive data while preserving the utility of the storage hardware.
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