oposs/silverstripe-hcaptcha
Protect your forms with hCaptcha 324
chitosystems/silverstripe-simple-captcha-field
Silverstripe spam captcha field 193
sunnysideup/comments_add_recaptcha
Adds Captcha to the comments module 176
hubertusanton/silverstripe-simplequestioncaptchafield
SilverStripe Simple question captcha field 13
toastnz/simple-captcha
A simple captcha spam protector 13
mateusz/silverstripe-qacaptcha
Form field and validator to check for spam by asking user-de… 7