In continuation to previous article on Securing Spring Boot Application by Simple CAPTCHA, here in this article we will discuss about Google reCAPTCHA. Needless to say, reCAPTCHA protects your application or website from fraud and misuse. It uses an advanced risk analysis engine and flexible challenges to keep malicious software out from entering into offensive activities on your website. Meanwhile, allowed users will be able to login, view pages, or create accounts. On the other hand, fraud users will be blocked. We have already discussed the fundamentals of captcha including it's definition & types in our previous article. In short, reCAPCHA is a type of captcha security. We will talk all about it in our article 'How To Secure Spring Boot
Everyone who is reading this article would have come across captcha validation while doing registration in a website or sometimes by other means. Some websites put a captcha validation in place to get rid of spammers. An application can either be accessed by human being or by a client program. Yes Of course! There is possibility that an Http client program developed by a professional hacker can access your application. In order to fill this security hole we can implement a captcha validation because a program can't read captcha image. Therefore, as a developer, you should have knowledge of 'How to secure Spring Boot Application by Captcha Validation?'. More or less, we will learn to implement spring boot captcha.