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You might have already come across some articles on the Internet stating that you don't need to wipe your SSD, as the TRIM command does the job by completely removing all traces of your personal data. Actually this is not exactly the case. Recent research shows that this method is not a success when you delete an entire drive or individual volumes.
The problem is that normally trimming is triggered by a file or folder delete operation and accomplished by relatively large blocks, which may lead to situations when an entire small file and its remnants remain intact. Besides, all storage service areas are not trimmed at all, while they often contain user's data.
If you want to be sure that your data doesn't fall into the wrong hands together with your SSD, you have got two options: either physically shred your SSD into pieces that are small enough that a single chip cannot escape damage or use a specialized data eraser app that supports solid state drives, for example Paragon Disk Wiper for Mac.
After a brief registration on Paragon's website I got a .dmg of the subject product. It should be noted that wiping is not accomplished under Mac OS, but you should start up your computer from a special Linux-based flash stick to do data erasure. This flash stick can be prepared with the Recovery Media Builder for Mac, the .dmg image of which is actually delivered after the product registration. Thus the first action was to prepare a Linux-based thumb drive.
I selected my flash stick as the target device. Please note all data on the specified thumb drive will be erased during the operation.
The whole operation took 20 to 30 seconds, which was quite acceptable.
Once I got the Linux flash stick, I should start up my Mac from it. It's a standard Mac procedure, well described on the welcome page of the Recovery Media Builder.
In the Linux startup menu I selected the most obvious option - Wipe Wizard.
After going through the wizard's welcome page, I specified a drive to wipe out.
Then I chose the SSD Trim option. Please note if you select one of the traditional HDD-based wiping methods for your SSD, you will shorten its lifespan as this operation eats up write cycles.
That's it. After confirmation, the wipe process initiated. Please note that unlike the traditional HDD-based wiping, the SSD Trim works very fast and it's completely safe for SSD.
As you see the new Paragon's Disk Wiper for Mac is quite easy to deal with. Taking into account its exclusive functionality and a zero price, I recommend it to all Mac users without a second thought.
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Andrey Sharpar is technical writer at Paragon Software Group. He is responsible for creating and writing various types of technical documentation, including how-to guides, manuals, product sheets, instructions. He holds BA in linguistics and translation from Tula State Pedagogical University.
Related Keywords:Deleting Sensitive Data, Data Removal, Secure Data Removal
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