On 25 Sep 2007, at 00:57, Lamont Granquist wrote:

> The exploit is not made public by its use. The exploit is not even
> made public by (back-channel) sharing amongst the hacker/cracker
> community. The exploit is only made public if detected or the
> vulnerability is disclosed. Until detected/disclosed the hacker/
> cracker can use their 31337 0day spl01tz to break into whichever
> vulnerable machines they like. 0day exploits are valuable because
> the opposition is ignorant of them.
>
> Posting exploits to BUGTRAQ, however, inherently makes them not
> 0day...

And my ignorant self thought until this thread that the "0" in the
term referred to the number of days of head start granted to the
vendor. Silly me. Because that would make all vulnerabilities
published without prior warning to the vendor a "0day"...

Roland (who seems to remember that this was once the meaning of this
term)
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