Some people say that the standard erasing of an SSD makes data recovery hard enough for it to be "secure. Technology such as wear leveling , which tries to ensure each memory block on an SSD is used the same amount of times, can really mess with a secure erase.
Erase and leave no trace
If we can't be confident an SSD was properly erased, then there is only one route to take that will ensure all data is beyond the reach of anyone: Using encryption. By using FileVault to encrypt the drive startup drive and Disk Utility to encrypt external drives, all the data on the drive will be garbled, unless someone has the encryption key your password. Now, when it comes time to part with your drive, all you have to do is a basic erase in Disk Utility.
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- How to Securely Erase Data from Your Mac and External Drives | The Mac Security Blog?
- Mac How to erase your Mac's hard drive the right way | Macworld.
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This will delete your encryption key, leaving nothing but garbled data on the drive. Without a way to decrypt the garble, even if all of it is recovered, it will be useless. Of course, you can apply this to hard drives as well, but as those have actual secure erase options available, it's better to use those. If you are unable to mount the drive, whether it's a hard drive or solid state drive, tools like Disk Utility won't help you. You might think that if you can't access it, neither will someone else.
Unfortunately, this is not the case. While a dumpster diver won't go through the trouble of repairing the drive, someone with more time, deeper pockets and more motivation certainly can. Hard drive platters can be extracted from the drive enclosure and read out using specialized equipment.
How to wipe a MacBook Pro - 9to5Mac
For drives that are not accessible, there is only one option to ensure the data is unrecoverable: Smash it to bits. Professional data recovery companies can extract data from drives that were under water for long periods of time—or even in a serious fire. Smashing a hard drive with a sledgehammer or baseball bat is strangely satisfying too, but unless you open the enclosure to make sure the platters or chips are pulverized, even a few well-placed hits may not be enough to destroy your data.
Of course, there is also a health hazard with debris flying around. So take precaution with this fun, albeit super destructive, method to securely erase data. A professional service that uses hard drive shredders is a safer and probably more effective option. That said, if you think you can do better than this , or if a professional service is not in your budget, or if you simply believe smashing it with a hammer is more satisfying, have at it! Just make sure you take the necessary safety precautions.
Either way, with these methods you can be sure your data does not end up in the wrong hands. The last option hammer time is what IRS administrators used — for details and time saving tips just ask retired, bonus award winner Lois Lerner. Follow IntegoSecurity. The Mac Security Blog. I just did what you said and it is now backing up. Keeping my fingers crossed but SO relieved!
Can check this off my list and move on. I have external HD and want to use it with my mac. But I have several pictures on this HD. I want to be able to add folders and continue to put several of my pictures and files on it. WHat do I need to do? If the drive is not recognized by the Mac, you can use Disk Utility to recognize the PC formatting and then format it for Mac compatability: I have an external hard drive that used to work with my mac.
- Even better with SSD and FileVault 2.
- Erase and leave no trace.
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Now it is reasonable only on a mac but I can read and write in a windows pc. How can i make it read and write for both mac and windows. I have an external drive and tried going to disk utilities…. Erase…Mac OS extended journaled …. Erase I get an error that it is unable to format. Any suggestions? The comment at the end is confusing see the last phase in quotes below …Is that just an advertisement? I want to follow the 7 step instructions to format a backup drive for my Can I follow the 7 steps and achieve that?
Yes, you can format an external hard drive for Time Machine this way. And no this is not the Dell site. Is it okay to keep it and reformat it for mac or am I much better off returning it and buying another one specifically for mac? Yes just format the drive for the Mac as described in this article on formatting an external hard drive to Mac OS X compatibility. Same here! This is the exact message. It came straight from the box:. Erasing a partition deltes all the data on that partition, but does not affect other partitions on the same disk.
Same here. Click Done to continue. The Disk Utility has changed, you might want to update the screen shots to reflect the new version, the Partition tab is noticeably different. It Fails and says: Disk Erase Failed. I get similar errors constantly when using USB hubs on Mac with external drives, but when plugged directly into Mac the hard drives work.
Having the identical problem connected directly to USB on the back of iMac. How do you tell if it is locked? I have a new maxone external drive, and it is not recognized in the left-hand panel of the Disk Utility. It is connected by USB cable, plugged directly into mu iMac.
I have an Iomega Ext. The storage is half full with over MB of storage left. Am I able to continue with the formatting without erasing the current files that are already on it? I have a 1TB Toshiba external hard drive, I have been using on my iMac and have been able to read an write on it. Why is it working on my iMac and not on my macbook pro? It seems that the hard drive is formatted for Windows but it does work read and write on my iMac.
Do I need to format this external drive to be able to use in more than one Apple computer? The one single thing, arguably one of the most important bits has been skipped altogether from this guide…. Majority if not all flash drives come not only with Windows dominant file systems, but also MBR formatted, vs the Mac where the operating system is always installed to a GPT partitioned disk.
Format for Mac compatibility as described, I use it with every disk. You do not need to mess with schemes, this is not Windows. This is Mac. In this case you are formatting the drive to be Mac compatible. This is not about Windows. Just trying to figure out if I need to back my pictures up to a second hard drive before I do this.
Backup everything you want to save. Nothing is left on the external hard drive after formatting is completed. This post is a lifesaver even 5 years down the track! Hi, I did what it said. But two of my USB are ruined, my computer cannot read them anymore. I kinda wanna cry. If you format a hard drive it erases the data on it.
That is what formatting does, it erases a drive. What else do you think erasing a drive is supposed to do except erase the data?
I purchased a 4TB WD external drive and having a heck of a time reformatting this drive. I have tried all the above advice without getting to have this new hard drive formatted. Any other suggestions? I just keep getting the error Disk erase failed. There must be something new with High Sierra Is there an option besides just declaring the data irretrievable, and more importantly, how does a USB uninitialize itself?
Will I be able to copy and share media across both Mac and Windows? I am Computer-Eleteret lol.
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Now My Mac is about There. I just have no Clue how to do it. Name required. Mail will not be published required. All Rights Reserved. Reproduction without explicit permission is prohibited. Enter your email address below: Posted by: Andy Robinson says: January 4, at 4: Fernando says: January 4, at AppleExpert3 says: November 12, at 2: AstroExpert2 says: July 6, at 3: Emaven says: January 4, at 8: April 22, at 4: Joe says: June 27, at 8: Sam says: July 28, at 8: August 21, at Roger says: April 10, at NYCer says: January 8, at 7: Ahmed says: November 26, at Lina Alvarez says: September 17, at 9: January 25, at 3: Thasleem says: March 17, at Debbie says: March 25, at 4: Timothy says: April 3, at 1: May 6, at Deon says: