How important is CAPTCHA?

[Garima]

I keep on seeing CAPTCHA or re-CAPTCHA each time I will "log-in" or just clicking a tab. Does it protect a webpage? Should I need to use this whenever I create my own site? Can you show me what are the importance in providing this?

 

[kunalkumar]

to protect the registration process, these websites have incorporated CAPTCHAs.

 

[petershene]

Captchas are mainly deigned to protect online resources like websites and applications from abuse from automated use. Its bassicaly to prove you are human and to stop crawlers and bots that would otherwise waste the resources of that site or application

 

[senorita]

Abbreviation of CAPTCHA is completely automated public turning test to tell computers and humans apart. They were invented in 2003 by luis von and his team of researchers at carnegie mellon university. Basically it is used as security checks to deter spammers and hackers from using forms on web pages to insert malicious or frivolous code. Like preventing scalpers from writing a computer program that buys every ticket in a fraction of seconds. CAPTCHA will not allow malicious code to pass in the site or database.

 

[sanusense]

Not just important, it's a need of today. Lots of scammers waiting on the fence to ruin your website. So, better have CAPTCHA.

 

[alberto-morrison]

The most relevant point which makes CAPTCHA so important is it will help us to identify that someone who accessing our website is human, not a robot or software.

 

[Keerti]

My personal experience with ReCAPTCHA (widely regarded as being one of the best) is that it took about a week after we added it before the spammers we were trying to prevent figured out how to solve them.

 

[touchstone]

Captcha is useful to stop the spamming

 

[The king]

CAPTCHA is very important for stop spamming CAPTCHA is basically code & it has seen while we fill up any forum & CAPTCHA code is basically use to stop spamming.

 

[zorbee]

When used on login pages, it helps to keep out brute force password scripts. When used on join forms, it helps to keep out bots.

 

[somnathji]

Captcha is useful to stop the spamming

 

[adlersmith]

Captchas are mainly deigned to secure internet sources like sites and programs from misuse from computerized use. Its bassicaly to confirm you are individual and to stop spiders and spiders that would otherwise spend the time of that site or program.

 

[Khurram]

It is used mostly to eradicate spamming but it really create irritation for users. Especially when U have to figure out the related pictures, most of the ppl dont go into the polls submission due to re-capcha headche.
Hope I can pass my point of view