[Mailman-Users] misleading description
David Andrews
dandrews at visi.com
Sun May 4 06:38:08 CEST 2008
I have 120 lists and thousands of blind and visually impaired users,
and if I were to implement any kind of captcha I would have a riot on
my hands!!!
David Andrews
At 06:19 PM 5/3/2008, you wrote:
> > On 5/3/08, Zbigniew Szalbot wrote:
>
> > > If the unsubscribe script cannot be exploited
> remotely, then
> > > I do not see probing as a real threat (especially if
> additionally secured
> > > by some captcha code or the like).
>
>Note that people seem to really want one-click unsubscription.
>CAPTCHA violates that design goal bigtime.
>
>Brad Knowles writes:
>
> > CAPTCHAs are not secure.
>
>CAPTCHA-meme, die! Die, die, die, I say! Die-die-die-die-die!
>
>Anyway, what Brad said being taken as given, what seems to be the case
>is that trivial CAPTCHAs like
>
><!-- Guess which FAQ-o-matic uses this CAPTCHA, successfully AFAIK! -->
><form>
>Please type "CAP-ME" in the box:
><input type="password" size="32"
> name="nobody_would_guess_im_a_captcha_cause_theres_no_image">
><submit>
></form>
>
>give all the protection that a CAPTCHA can give. This is somewhat
>effective, because if the 'bot doesn't expect that particular CAPTCHA,
>it will lose. And that's the best you can do.
>
>What I conclude is that CAPTCHAs are a reasonable way for some low-to-
>moderate-traffic sites to shift the burden of spam-fighting to their
>users and to other sites, but that if Mailman ever implemented one,
>that would immediately make Mailman sites a target for automated
>CAPTCHA breaking. So sites serious about using CAPTCHA to discourage
>spamming would need to implement their own, anyway.
>
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