HeadWinds uses the proof-of-work (or “client puzzle”) approach for combating spam. Proof-of- work approaches slow down spammers by requiring them

Author:Tien Le, Nhan Huynh, Wuchang Feng (profile at wordpress.org)
WordPress version required:3.0
WordPress version tested:3.5.2
Plugin version:2.4
Added to WordPress repository:09-11-2012
Last updated:31-07-2013
Warning! This plugin has not been updated in over 2 years. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.
Rating, %:100
Rated by:1
Plugin URI:http://metaccaptcha.com
Total downloads:587
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HeadWinds is now called MetaCAPTCHA. You can download our new anti-spam plugin at: http://wordpress.org/plugins/metacaptcha/