I CANNOT Say This Too Many Times

Discussion in 'Computers, Hardware, and Operating Systems' started by AF6LJ, Jan 11, 2017.

ad: L-HROutlet
ad: l-rl
ad: Left-3
ad: Subscribe
ad: L-MFJ
ad: abrind-2
ad: Left-2
  1. AF6LJ

    AF6LJ Ham Member QRZ Page

    Put anything on a computer you don't want to be seen by someone else.
    It if can it will be used against you, when you least expect it.

    From Slashdot...
    Why You Shouldn't Trust Geek Squad (networkworld.com) 285
    Posted by BeauHD on Tuesday January 10, 2017 @10:30PM from the trust-no-one-not-even-myself dept.

    An anonymous reader quotes a report from Network World: The Orange County Weekly reports that Best Buy's "Geek Squad" repair technicians routinely search devices brought in for repair for files that could earn them $500 reward as FBI informants. This revelation came out in a court case, United States of America v. Mark A. Rettenmaier. Rettenmaier is a prominent Orange County physician and surgeon who took his laptop to the Mission Viejo Best Buy in November 2011 after he was unable to start it. According to court records, Geek Squad technician John "Trey" Westphal found an image of "a fully nude, white prepubescent female on her hands and knees on a bed, with a brown choker-type collar around her neck." Westphal notified his boss, who was also an FBI informant, who alerted another FBI informant -- as well as the FBI itself. The FBI has pretty much guaranteed the case will be thrown out by its behavior, this illegal search aside. According to Rettenmaier's defense attorney, agents conducted two additional searches of the computer without obtaining necessary warrants, lied to trick a federal magistrate judge into authorizing a search warrant for his home, then tried to cover up their misdeeds by initially hiding records. Plus, the file was found in the unallocated "trash" space, meaning it could only be retrieved by "carving" with sophisticated forensics tools. Carving (or file carving) is defined as searching for files or other kinds of objects based on content, rather than on metadata. It's used to recover old files that have been deleted or damaged. To prove child pornography, you have to prove the possessor knew what he had was indeed child porn. There has been a court case where files found on unallocated space did not constitute knowing possession because it's impossible to determine who put the file there and how, since it's not accessible to the user under normal circumstances.
    N0TZU, NK2U, KF5RRF and 1 other person like this.
  2. NK2U

    NK2U Ham Member QRZ Page


    Good point, and I might add, never throw away your computer with the hard drive still in it. Always take it out and physically destroy it (smashing with a hammer) until it is in tiny bits. This is the only way to ensure that the data can't be retrieved.

    de NK2U
    NL7W, K9ASE, N0TZU and 1 other person like this.
  3. AF6LJ

    AF6LJ Ham Member QRZ Page

    Being too cheap to throw away a perfectly good hard drive I use DBAN to scrub them, going well beyond the default settings.
    KM1H and KF5RRF like this.
  4. KF5RRF

    KF5RRF Premium Subscriber QRZ Page

    Another vote for DBAN! Just use the DoD-level wipe at 35 passes and you'll never recover a darn thing off that drive. :cool:

    Plus, you have a hard drive you can re-use or give away to someone in-need.
    AF6LJ likes this.
  5. AF6LJ

    AF6LJ Ham Member QRZ Page

    It is also a good way to put data pictures etc. in cold storage.
  6. W7UUU

    W7UUU Super Moderator Lifetime Member 133 Administrator Volunteer Moderator Platinum Subscriber Life Member QRZ Page

    Not to be picky, but DBAN doesn't have DoD level erasure or any other advanced features. Only "full data erasure". In order to get advanced erasure features such as DoD, NIST and other advanced security and recording features, you have to buy their Blancco Drive Eraser program that charges a license fee for each and every drive you erase. I have used Blancco for my business drives in the past, and use DBAN for just home use.

    www.DBAN.org has lots of detail.

    I never have computers serviced by anyone but myself. It ain't rocket science to get a computer working, IMO. In the case of laptops, if I'm not comfortable pulling an old drive, I take it to a local shop where they remove it while I wait. Then I'm fine leaving it with them to install the new drive and set it up.

    N2EY likes this.
  7. AF6LJ

    AF6LJ Ham Member QRZ Page

    If you have it cycle through a drive enough times it will do just as good or better than the DOD wipe. You just have to be patient and wait while it does its magic. You wipe a cluster enough times and even the skew data fragments are not recoverable.
  8. N0TZU

    N0TZU Platinum Subscriber Platinum Subscriber QRZ Page

    Multiple wipe passes aren't really necessary anymore with modern disc drives (like 2008 up) because there is essentially zero side track remanent.
    AF6LJ likes this.
  9. N9NAY

    N9NAY Ham Member QRZ Page

    Oh god...that's just what a bunch of hams need to worry about....LSB and USB on their hard drives.

    I thought only 10K RPM or higher drives use USB?
  10. N1EN

    N1EN Premium Subscriber QRZ Page

    Can a person achieve RAID½ by using DSB?

Share This Page