I randomly renamed the alphanumeric images and I keep a list of correspondences between these random names and the actual values of the letters somewhere on my site. So, actually, what a robot would see in the image URLs is various names of Greek cities (e.g. "athens", "thessaloniki", etc. -- hey! I'm Greek after all ;-).
Then, the cgi script reverses the process and checks the password. I suppose bots are not that clever to figure out what's going on.
In reply to Re^3: Stop Form Hurling
by emav
in thread Stop Form Hurling
by awohld
| For: | Use: | ||
| & | & | ||
| < | < | ||
| > | > | ||
| [ | [ | ||
| ] | ] |