What is the need for CAPTCHA?
Well,as mentioned above the function is to "differentiate between automated machines and human attempts to Sign-up" so it is quite evident why we need it?
1. Few unpopular companies can use automated systems to Sign-up in email accounts and increase the popularity of their product but due to captcha it is prevented to some extent.
2.At the same time attackers can use automated machines to increase huge amount of load on the target sever so,capthca's presence abandon this to some extent.
3.Captcha also prevents Sign-ups of loads of spam accounts per day which result in rejection of registration.
What is New Captcha?
Canadian firm Nucaptcha aims to rewrite the rules for account validation with video based captcha system.Users have to identify moving text on a video background. The firm also offers a voiceover audio option for the partially sighted or colour-blind.
What is the need for New Captcha?
1. This can be used with ease compared to traditional text-based CAPTCHAs.which have a 25 per cent registration rejection rate due to wrong typing and user frustration on visualizing.
2.This platform of captcha behavioral intelligence to deliver easy captcha to normal users and difficult captcha to attackers.
3.Animated captcha are very difficult for automated software to solve as they have closely packing letters together.
READ THIS REPORT: This is a research report(Download)