full-disclosure - How T-Mobil's network was compromised

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From: infsec at gmail.com (Willem Koenings)
Subject: How T-Mobil's network was compromised

On Sun, 20 Feb 2005 10:50:47 -0600, Frank Knobbe <frank@...bbe.us> wrote:

 
> The point is that often code works correctly, stable and secure, and
> does what the programmer intended to do. However, sometimes the
> programmer overlooked a condition to check for. The lack of that check
> is not a flaw in the code. A reviewer may not find it because he may not
> conceive a requirement for such a check either. So the code is correct,
> no flaws in it. Yet it will fail under certain conditions.
> We can only check for the existence of those flaws that we are aware of.
> We can not say that tested code does not have flaws that we didn't
> conceive.

Yes, and thats why i said, that original quote is not always true
because it is differently understandable. If i know one specific flaw
or vulnerability, then i specifically can test against presence or
absence of  that specific flaw or vulnerability.

all the best,

W.