How to Erase Mac Hard Drive
Create your own wipe algorithm with minimal effort — define up to 4 wiping patterns, number of passes for each wiping pattern and for the group of patterns, thus resulting in over possible number of passes. Be well-informed about the results of the wipe operation to verify when wipe operations have been successfully accomplished. Enjoy support of a wider range of hardware configurations with the option to add drivers for specific hardware on-the-fly. Creates a bootable wiping media in a few clicks Ten different disk sanitization algorithms Wiping SSD Wipe exactly what you need - hard disks, separate partitions or free space Wipe data even if your Mac fails to boot.
Overview Resources. Why Paragon Disk Wiper for Mac? Ten different disk sanitization algorithms support Irreversibly destroy all on-disk data in compliance with major national government and military data erasure standards, as well as the most comprehensive academic wipe algorithms, thus providing maximum level of security US DoD Flexible customization option Create your own wipe algorithm with minimal effort — define up to 4 wiping patterns, number of passes for each wiping pattern and for the group of patterns, thus resulting in over possible number of passes.
Efficient operation Minimal effect on the system performance. Easy to use Simple wizard driven engine. Basic partitioning operations create, delete, format Optimize the management of your hard disks. But it seems to have gone missing in recent macOS versions.
Luckily, it's still available on the command line via Terminal. This command would write zeroes on the entire 'Macintosh HD' drive.
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There are a few other common options available instead of 0 if you run man diskutil and scroll down to the secureErase section. I most commonly use:.
The other options are even more secure, according to brainy hardware people I also encrypt my entire drive, as well as my Time Machine backups, so I feel fairly secure regardless of what kind of erasure mode I choose. I figure if a government wants to hack my personal info, there are a zillion other avenues they would be more successful in hacking than a 3-pass-erasure of a secondhand SSD or hard drive that had encrypted personal data.
How to securely erase free space on a hard drive (Mac) | Jeff Geerling
In diskutil you have still Security Options in the Erase dialog. There is a slider from Fastest to Most Secure. Whatever that means.
It erases your files and writes over the data 7 times. That should be enough.
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