What does the term "wiping" refer to in data sanitization?

What does the term "wiping" refer to in data sanitization?

• A. Making data unreadable with an electromagnetic field
• B. Overwriting data with random bits to prevent recovery
• C. Physically destroying the media
• D. Encrypting data without destroying it

Answer: (B)

The term "wiping" in data sanitization specifically refers to the process of overwriting existing data with random bits to render it irrecoverable. This method ensures that the original data cannot be retrieved by recovery software or techniques, as the new data completely replaces it. Wiping is an effective approach because it can be done multiple times, further enhancing data security by complicating recovery efforts. It is essential, especially when disposing of or repurposing storage devices that previously contained sensitive or confidential information. While other options involve data protection or destruction methods, they do not align with the standard definition of "wiping." For instance, using an electromagnetic field to make data unreadable may refer to degaussing, which does not entail overwriting but rather disrupting the magnetic field of storage devices. Physical destruction of media is a different method that involves breaking or shredding the device itself to prevent any data recovery. Lastly, encrypting data is a security measure that protects information while it remains intact, but it does not eliminate the data in a way that would prevent its recovery without first decrypting it.

The term "wiping" in data sanitization specifically refers to the process of overwriting existing data with random bits to render it irrecoverable. This method ensures that the original data cannot be retrieved by recovery software or techniques, as the new data completely replaces it. Wiping is an effective approach because it can be done multiple times, further enhancing data security by complicating recovery efforts. It is essential, especially when disposing of or repurposing storage devices that previously contained sensitive or confidential information.

While other options involve data protection or destruction methods, they do not align with the standard definition of "wiping." For instance, using an electromagnetic field to make data unreadable may refer to degaussing, which does not entail overwriting but rather disrupting the magnetic field of storage devices. Physical destruction of media is a different method that involves breaking or shredding the device itself to prevent any data recovery. Lastly, encrypting data is a security measure that protects information while it remains intact, but it does not eliminate the data in a way that would prevent its recovery without first decrypting it.