- From: Ramón Corominas <listas@ramoncorominas.com>
- Date: Thu, 08 May 2008 19:43:57 +0200
- CC: w3c-wai-ig@w3.org
I think negative captchas are a very interesting approach to reduce spam. Of course it's not perfect, but introduces another step to difficult bots' job and it's also an usability improvement, as users don't have to fill an annoying test-field. Another step could be to randomize the variable names for the form fields, using session vars to track them, although this method would not allow auto-complete systems to work. Regards, Ramón. > I don't remember where I read it, but I remember an excellent article > from a year or two ago advocating something like "negative captchas".
Received on Thursday, 8 May 2008 17:43:42 UTC