recaptcha

No CAPTCHA reCAPTCHA Captcha replacement for e107 v2.1.3 or higher. ReCaptcha for e107 v 2.1.5 higher

You should use this plugin on your own risk.

You can support next development by donation on https://www.e107.sk/

Source and thanks:

https://github.com/e107inc/visualcaptcha

https://webdesign.tutsplus.com/tutorials/how-to-integrate-no-captcha-recaptcha-in-your-website--cms-23024

http://stackoverflow.com/questions/1241947/how-do-i-show-multiple-recaptchas-on-a-single-page