The method of completely deleting hard disk file data under OS x system, recovery software can not be restored

Source: Internet
Author: User

Annie Zeng The door makes people very nervous about data security, even if delete + empty Recycle Bin, files and data can still be restored. Because the data is still on the hard drive, it's just tagged: "Hey, OS, this place has data, but you can write new files to overwrite it." Data recovery software Drilling The Confucius---ignore the tag and read the deleted file directly. Here is a Mac OS X operating system, the total removal of Apple hard disk file data method, recovery software can not be restored.

Go to the finder--application-utility-disk utility and select the disk partition you want to erase completely

Then, on the right, select "Erase"---"Security options"

At this point you will see a list of Delete methods, the first item is the normal delete + empty Recycle Bin. The next few goes without saying, the screenshot is very clear.

But note that 7 erase is a long process (hard drive, and 7 times back and forth), and security is high enough---the United States Department of Defense data security standards, so if not completely delete the special confidential files and data, do not choose "35 erase"---that will be a great challenge to endurance and will.

Of course, protecting files and data security does not have to be completely removed, but it can also be encrypted. Apple Computer Mac OS X operating system comes with file encryption (AES-128 and aes-256,128 bits or 256-bit file encryption ...

Related Article

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.