07 July 2005 17:45
Elliott Back » Wordpress Hashcash 2.2
(via)WP Hashcash is Wordpress’ strongest antispam plugin, boasting 100% efficiency. Over the last 6 months, not a single automated spammer has been able to break through. It works by using client side javascript to compute a special value which is sent to the server for verification. Since robots don’t have javascript, it’s unlikely that they will ever send the correct hidden value.
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