Chris Snyder wrote: > Captchas are vulnerable to the porn-in-the-middle attack, but > you would have to have some really hot porn in order to post > large volumes of spam across millions of sites.
You'd just need enough traffic to teach a tool like PWNtcha, and that's only necessary for unique CAPTCHAs. Existing libraries are probably already covered. Employing a CAPTCHA raises the bar, but there are less annoying ways to do that. Can you tell I'm not a fan? :-) Before anyone notes my hypocrisy, my blog requires people to indicate my first name in order to post a comment, and although I might adopt a better approach, at least this approach is accessible. Chris -- Chris Shiflett http://shiflett.org/ _______________________________________________ New York PHP Community Talk Mailing List http://lists.nyphp.org/mailman/listinfo/talk NYPHPCon 2006 Presentations Online http://www.nyphpcon.com Show Your Participation in New York PHP http://www.nyphp.org/show_participation.php
