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Does Secure Empty Trash work on Mac w SSD?

Fresh5 days ago
Mar 15, 20262857 views
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Problem

Given that an SSD does wear leveling, does the Secure Empty Trash on the menu in MacOSX really work? Is something special being done force overwrites to the same physical block of flash and bypass the wear leveling algorithms built into the SSD? (related QA on SO)

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New Fix – Awaiting Verification

Fix for: Does Secure Empty Trash work on Mac w SSD?

Low Risk

SSD wear levelling poses a prickly problem for secure deletion. Wear levelling is a low level algorithm working in the drive that randomises where data is written. This happens independent of the OS. By design, wear levelling spreads out multiple wr…

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Environment