Adds a honeypot form field on the registration and login pages to trap spammers.
Certly Guard automatically removes comments that contain malicious links.
Pictcha is a very unique & secure CAPTCHA.
Foresight makes it easier for a WordPress administrator to stay up-to-date on current WordPress exploits.
CIDRAM: A PHP-level CIDR/IP-based firewall solution.
Restrict the usernames, email addresses, characters and symbols or email from specific domain names or language in registration ...
Show spam statistics on your blog. (Now merged into SpamTask)
Remove all links from comments
This is the new generation IceCaptcha plugin. The Anti-Spam security system misses no bots and does not disturb a human being.
minotaur - Rid the internet of text CAPTCHAs!
Extremely simple, 0 configuration and 0 user/admin-interaction anti-spam plugin.
The plugin adds links to bloggers posts for readers to contact them without scripts or work-a-rounds like my email is john (at) doe.com.