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Posted by Jonathan N. Little on 02/23/07 23:10
Tina Peters wrote:
<snip>
> Yes, it does work. I'm not doubting that it can't be outsmarted and maybe
> eventually it will. That said, I'm sure some wise alec is going to
> purposely spam me...but we've gone from 10 spams to 1 legitimate email to
> ZERO form spams since we started using it. We've been using it for several
> months now and NOT ONE spam has made it through. Further, it doesn't have
> the same usability issues that true CAPTCHA does.
No it does *not* work! The whole point about CAPTCHA images is that they
are images of characters that a "human" must view and interpret as the
passcode and not trappable text. The font color and style means nothing
to a script!
Not to hard at all to devise a regular expression to extract "9f2bf"
from your script's generated table...
<table border="1" cellpadding="2" cellspacing="0" width="100%">
<tbody><tr bgcolor="#ffffff">
<td align="center"><font color="#0000ff" size="3">9</font></td>
<td align="center"><font color="#006633" face="Arial, Helvetica,
sans-serif">f</font></td>
<td align="center"><font color="#330033" face="Times New Roman, Times,
serif" size="3">2</font></td>
<td align="center"><font color="#ff0000">b</font></td>
<td align="center"><font face="Times New Roman, Times, serif"
size="4">f</font></td>
</tr>
</tbody></table>
Your CAPTCHA script is like putting a combination lock on a door with
the combination clearly printed on the lock!
--
Take care,
Jonathan
-------------------
LITTLE WORKS STUDIO
http://www.LittleWorksStudio.com
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