[REBOL] Preventing Automated Website Registrations
From: tserpa:earthlink at: 8-May-2002 10:25
We run a sweepstakes on one of our websites. Recently, we have been hijacked by some
hacks that run a program that automatically registers people for the sweeps. The lowly
scum that does this is at www.ezsweeps.com.
Anyway, I know Yahoo and PayPal use a technology to prevent automated registrations.
If you haven't seen it, go to the Yahoo registration page and scroll to the bottom.
It's called "word verification". Basically it is just a distorted word embedded in an
image. Apparently, humans can read the word but computers cannot decipher it. The word
must be entered in a text box before the registration is accepted.
The program (or some variant of it) that Yahoo uses can be found at the following site:
The source is freely available. It is a Perl program that uses the Gimp to generate
I thought that this would be perfect to implement in Rebol. I imagine /View could be
used to generate the images, obviating the need for the Gimp. Also the program would
I would like to do this, but unfortunately, I don't have enough skill in programming
Rebol. Can anyone help?