Which security technique or device wipes the data from a hard drive by being placed near the drive platter for at least 2 minutes?

Question:
Which security technique or device wipes the data from a hard drive by being placed near the drive platter for at least 2 minutes?

• degaussing wand
• EFS
• low-level format
• biometric scanner
• erase scope

Explanation: A degaussing wand requires being placed over hard drive platters for a couple of minutes, whereas an electromagnetic degaussing device can wipe all data in seconds.

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