The principal barrier against automated abuse and spam are CAPTCHAs. They are the custodian of every website and app, deputed to tell human users and spammers apart. The most common type of CAPTCHA challenges the user to type an obscured sequence of letters or digits that appear on the screen, or to discern abstracted images [...]The post FunCaptcha: security verification for people of all abilities appeared first on FunCaptcha.