How you can use Terminal to securely erase free area on a Mac’s drive

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When you’re promoting an outdated Mac, a spare laborious drive, otherwise you’re simply fairly paranoid about your deleted knowledge, you’re both conversant in—or must be conversant in—the Erase Free House button on the Erase tab in Disk Utility (present in your Functions -> Utilities folder). If you click on this button, you’re offered with three …
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