A company purchases 15 USB flash drives to use for data analysis training for company accountants. The data analysis training requires that actual company data be stored on the drives, so a secure method of erasing the data is needed before the flash drives can be reused for other training classes. What method should the IT technicians use to ensure that the data on the USB flash drives cannot be recovered?
- a quick formatting utility to overwrite the data
- a degaussing wand to erase the data
- a secure erase software utility to wipe the drive
- an electromagnetic device to wipe the drive
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