The ‘ Most Secure’ option implements U.S. Click ‘ Security Options…’ and move the slider to ‘ Most Secure.’.

Enter the volume ‘ Name’ and choose a ‘ Format.’.Select the hard drive or hard drive volume from the left pane.Go to Applications >Utilities and click on ‘ Disk Utility’.Secure Erase Mac Hard Drive via Disk Utility.Data once overwritten as per international erasure standard is virtually impossible to recover.įollowing are a few possible ways that you can follow on macOS to securely erase an internal or external Mac hard drive volume.ĬAUTION: Back up all your important files from your Mac hard drive before heading any further.

Secure eraser works by overwriting the actual data-not just the index entry from the file system-with pseudo-random values. To protect your data on Mac hard drive from theft, offline breaches, and data recovery, you need to secure-erase all sensitive and confidential files or Mac hard drive volumes as per international data erasure standards. It’s similar to quick formatting in Windows, and so, the data remains on the drive and can be recovered by using a basic data recovery software. In macOS, erasing a Mac hard drive without using security options only deletes and overwrites the existing file system index. Just open Disk Utility, choose a Mac drive volume, and click ‘ Erase.’Īlternatively, you may open the Finder app, explore the files in the Mac volumes, and erase as many files as you want.īut beware! If you think erasing sensitive files via Finder app or Mac hard drive volumes via Disk Utility is enough to shield against data theft or offline data breaches, then think again! In this guide, you will learn the best possible ways to secure erase an internal or external Mac hard drive volume and purge sensitive data beyond the scope of recovery.Įrasing external Mac hard drive or internal Mac drive volumes is as easy as pie! For quickly erasing the sensitive data from your Mac drive beyond the scope of recovery, you may also buy a secure data erasure software, such as BitRaser File Eraser. Summary: This guide will learn the best possible ways to erase an internal or external Mac hard drive volume.

Erase hard drive