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Ophcrack Says Your Password Is Insecure

javipas writes "An insightful article at Jeff Atwood's Coding Horror reveals the power inside Ophcrack, an Open Source program that is capable of discovering virtually any password in Windows operating systems. The article explains how passwords get stored on Windows using hash functions, and how Ophcrack can generate immense tables of words and letter combinations that are compared to the password we want to obtain. The program is available in Windows, Mac OS and Linux, but be careful: the generated tables that Ophcrack uses are really big, and you should allow up to 15 Gbytes to store these tables."

3 of 249 comments (clear)

  1. Editors at it again... by lixee · · Score: 0, Troll

    An insightful article at Jeff Atwood's Coding Horror reveals the power inside Ophcrack, an Open Source program that is capable of discover virtually any password in Windows operating systems.
    Please CmdrTaco, do your job.
    --
    Res publica non dominetur
  2. Re:Windows is insecure by design by baggins2001 · · Score: 0, Troll

    I don't really care about this issue with linux. Because zero of my users know how to do this with linux. But MS advertises this as a feature and by god people around here want to be as secure as possible. God forbid someone should stubble on the porn they are storing on their computer. But occassionally they will encrypt something really important and just go, well if I forget it the IT guy can get it back.

    We don't have bitlocker on any of our systems, but I'm sure we will in the next 3 months. I haven't even looked at it, but I am concerned that it may be too secure for the users own good.

    --
    He who said 1,000,000 monkeys on 1,000,000 typewriters would eventually type the great novel, never saw an AOL chat room
  3. Re:This is why two factor authentication is necess by Reverend528 · · Score: 0, Troll

    "This is the passworrd for my new computerr"

    That would be a great password, except:

    md5sum("This is the passworrd for my new computerr") = fb7393356dd5f5e6d3909e06bf64c91e
    md5sum("hello12") = fb7393356dd5f5e6d3909e06bf64c91e

    Better luck avoiding an unintentional collision next time.