Flash drives dangerously hard to purge of sensitive data

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    Flash drives dangerously hard to purge of sensitive data


    Posted: 21 Feb 2011
    When secure wiping isn't

    In research that has important findings for banks, businesses and security buffs everywhere, scientists have found that computer files stored on solid state drives are sometimes impossible to delete using traditional disk-erasure techniques.

    Even when the next-generation storage devices show that files have been deleted, as much as 75 percent of the data contained in them may still reside on the flash-based drives, according to the research, which is being presented this week at the Usenix FAST 11 conference in California. In some cases, the SSDs, or sold-state drives, incorrectly indicate the files have been "securely erased" even though duplicate files remain in secondary locations.
    more..
    Airbot's Avatar Posted By: Airbot
    21 Feb 2011



  1. Posts : 19,383
    Windows 10 Pro x64 ; Xubuntu x64
       #1

    Very interesting....might just hang onto all those old flashdrives for a while yet.
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  2. Posts : 5,105
    Windows 7 Professional 64-bit SP1
       #2

    Could that cause a problem when performing a clean install of an Operating System ? residue of the previous Operating System could cause system problems.
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  3. Posts : 670
    Windows 7 Pro 64bit build 7601 SP1
       #3

    Looks like the only sure fire way is to actually physically destroy the drive after using it to it's max life.
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  4. Posts : 6,618
    W7x64 Pro, SuSe 12.1/** W7 x64 Pro, XP MCE
       #4

    I had thought about buying an SSD, but this may change that. It is not that I have all that much data that I need to secure, but it doesn't take much to be significant. The idea of a lost or stolen drive has never been very nice, but with these I would even be concerned about RMAing one. It makes it sound as though the only safe method of securing data is a big hammer.

    EDIT: Seems that metalmania31 and I were thinking along the same lines.
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  5. Posts : 826
    Windows 7 Professional 64 Bit SP1
       #5

    I always physically destroy my old flash drives / hard drives anyway, so this isn't a concern for me. But as someone said, this makes SSDs even more unappealing.
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  6. Posts : 5,105
    Windows 7 Professional 64-bit SP1
       #6

    I was to buy a SSD drive later this year as part of a new computer build ... I may well be looking at a mechanical drives now
      My Computer


  7. Posts : 19,383
    Windows 10 Pro x64 ; Xubuntu x64
       #7

    Hi,

    Perhaps one way to "secure wipe" it would be to put it through a looping defragmentation. Perhaps even a constant and looping performance test using HDTUNE or similar. These are known to shorten the life of the SSD (although I'm not sure exactly what that means).

    Perhaps some SSD guru's could comment on that?

    I tend to keep my sensitive data off the SSD, so perhaps its not as big an issue at the moment.

    Regards,
    Golden
      My Computer


  8. Posts : 2,164
    Windows 7 Ultimate 64bit
       #8

    Ciara said:
    I was to buy a SSD drive later this year as part of a new computer build ... I may well be looking at a mechanical drives now
    Why would this info change your mind? do you often lose your hard drive?
    Also, if your mechanical drive fails and you RMA it, the Data is still on it.
      My Computer


  9. Posts : 1,261
    Windows 7 Professional 32-bit SP1
       #9

    This is no problem that an incinerator won't solve...
      My Computer


 
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