I have been meaning to blog about this for over a year now, but check out the captcha on this website: http://linksave.in/register.
That is one way on how NOT to do captcha, but very interesting and I wonder how spam bots go with it.
I have been meaning to blog about this for over a year now, but check out the captcha on this website: http://linksave.in/register.
That is one way on how NOT to do captcha, but very interesting and I wonder how spam bots go with it.