Cheap, fast, and works 100%: He pulled out a hammer and smashed it to bits. I watched a video once where a security expert demonstrated the very best method of securely disposing of old hard-drives. You must hold the Command key while right-clicking the Trash icon in the Dock, or else the Secure option will not be visible. Mac OS X makes it easier than ever to access secure file removal: Command+Right Click the Trash can. which will leave potentially private data on the disk. 1: How to Secure Empty Trash Quickly in Mac OS X with a Right-Click. There are also other scenarios like Version Updates, Time Machine Local Snapshots, Autosave, Resume, File Caches, Leftover Swap, ect. I am sorry if this has been brought up before (or if this should be painfully obvious). Also there OS X's defragmentation, which when it consolidates files will leave old fragments scattered around the drive. Thread starter The Memory Hole Start date The Memory Hole Ingsoc. You're just asking about the Trashcan, but you have to keep in mind that when most applications save files, they will (non-securely) delete the old file and just save a completely new copy. Secure however is a relative term and the way SSDs work to actually 100% securely erase anything from them you will need to format/wipe the drive with a 7-pass secure erase which is the DOD (Department of Defense) standard. Yes, when you empty the trash securely from 10.7, 10.8 and 10.9 versions of OS X, it overwrites enough of the original file to be considered an actual "secure erase". Drag all the files into the terminal window. But that's somewhat of a different issue. After restarting Mac, launch the Terminal via spotlight and follow these steps to empty trash Mac: Enter sudo rm R (Do not hit enter and make sure you copy it correctly with the correct spaces) Press Control + click on the Trash icon to open. Although in a version or two prior 10.6.8 the OS would at least tell you if your drive supported TRIM. It's another question all together if the Empty Trash Securely acts as a TRIM substitute (at least for files going through the TrashCan process) for Macs still running OS versions 10.6.7 and prior - which do not have TRIM support at all. Yes, it really works with all of the usual caveats predating or precluding SSDs.
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