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Nairaland Forum / Science/Technology / Webmasters / The Meaning Of CAPTCHA & 6 Types Of CAPTCHA (35802 Views)
What Is The Meaning Of "Unlimited Domains"? / How To Disable Captcha In Joomal Comment / How To Disable Captcha In Blogger Comment (2) (3) (4)
Re: The Meaning Of CAPTCHA & 6 Types Of CAPTCHA by Vivipop(f): 12:19pm On Mar 16, 2015 |
Timoleon:Thanks dear. I've decided to buy my way tomorrow. I'll get him a little something and if he refuses, then i'll have to spend my birthday in the weirdest place. |
Re: The Meaning Of CAPTCHA & 6 Types Of CAPTCHA by Masturbation(f): 12:25pm On Mar 16, 2015 |
Jan.ja.weed |
Re: The Meaning Of CAPTCHA & 6 Types Of CAPTCHA by xtremeinv(m): 1:06pm On Mar 16, 2015 |
mainman7: Nice post but with a lot of ethnic hate... Go cool off bro! |
Re: The Meaning Of CAPTCHA & 6 Types Of CAPTCHA by Nobody: 1:37pm On Mar 16, 2015 |
snowland: Seconded by me snowland: Seconded by me |
Re: The Meaning Of CAPTCHA & 6 Types Of CAPTCHA by Thebrightest(m): 1:51pm On Mar 16, 2015 |
Akinrogun:You are a matured maggot |
Re: The Meaning Of CAPTCHA & 6 Types Of CAPTCHA by Thebrightest(m): 1:55pm On Mar 16, 2015 |
Gbotun:Start dancing na |
Re: The Meaning Of CAPTCHA & 6 Types Of CAPTCHA by aziddam1001(m): 3:42pm On Mar 16, 2015 |
Dharniel:Sure! That's why there is a new version of the CAPTCHA called reCAPTCHA developed 2014. |
Re: The Meaning Of CAPTCHA & 6 Types Of CAPTCHA by ijecks(f): 3:46pm On Mar 16, 2015 |
haibe:lol, wicked |
Re: The Meaning Of CAPTCHA & 6 Types Of CAPTCHA by Timoleon(m): 4:10pm On Mar 16, 2015 |
Vivipop: Regardless of what happens, be happynfor yourself. |
Re: The Meaning Of CAPTCHA & 6 Types Of CAPTCHA by dasoul(m): 4:44pm On Mar 16, 2015 |
now i know why i no longer see those crazily distorted captchas from yahoo. i love the captchas that simply ask for an arithmetic addition. |
Re: The Meaning Of CAPTCHA & 6 Types Of CAPTCHA by bennyzer(m): 5:13pm On Mar 16, 2015 |
Occupy till I come. |
Re: The Meaning Of CAPTCHA & 6 Types Of CAPTCHA by rossychik(f): 8:51pm On Mar 16, 2015 |
mainman7:I don't knw what ur problem is u re callin ibos tribalistic but frm what I hav seen u re dsame. So pls if u hav problm wit an igbo settle it amicably instead of dis E-war. As 4 d topic of rape d issue is just too much dis days irrespective of tribes, there are some dt are nt published we just hav 2 pray 4 our country because things are really happening. #just sayin my mind no offence meant# |
Re: The Meaning Of CAPTCHA & 6 Types Of CAPTCHA by Akinrogun(m): 2:59pm On Mar 17, 2015 |
Thebrightest:dumbfuck......hug d nearest live transformer! |
Re: The Meaning Of CAPTCHA & 6 Types Of CAPTCHA by Nobody: 3:50pm On Apr 02, 2015 |
[quote author=stbaby post=31651664]CAPTCHA code was developed in the year 2000, it was created to prevent automated spam robots from filling out forms, sending out spam and carrying out other malicious activities on the internet. CAPTCHA means 'Completely Automated Public Turing Test to Tell Computers and Humans Apart'. It is a security feature used by a Website/blog to tell if it is communicating with a human or an automated spam robot. CAPTCHA's are useful in situations where it is absolutely essential to tell humans and machines apart, such as newsletter subscription, blog commenting, online registration, placing orders, filling surveys and e-commerce transactions. Automated bots was primarily designed for sending spam for commercial promotional purposes, but more than ever, it is now being used for malicious purposes like harassment or vandalism. Blog, forums and any comment-enabled site also use CAPTCHAs. With it they can be sure that no robot is commenting with the sole purpose of posting links to their website. Though a human could filter the comments when it is a less busy or small websites. But as soon as growth begins, taking care of spam without any help can become a full-time job for many people. Therefore, the use of CAPTCHA is necessary. When selecting a CAPTCHA, 2 characteristics must be considered: 1. The CAPTCHA must be hard enough for a computer to understand. 2. The CAPTCHA must be easy enough for humans to understand. Currently, most CAPTCHAs are distorted texts or characters mixed with other colors that are in the form of an image. Most of them also include the function to be heard on an audio file. It's very useful if you have to enter a text that you can't manage to read. The most common complaint about the distorted word test is that some images were so complex, that even humans could not decipher them. People got tired of having to re-enter different CAPTCHA codes, a number of times, before a website accepted their form submission. Also, blind users, who use screen readers and other tools to browse the Internet, were unable to see the words in the image for the CAPTCHA test. Today, automated spam robots are getting smarter with the development of new technology. The creation of new algorithms, together with OCR, has enabled them to recognize the pattern of characters in images, even on noisy backgrounds. These issues have lead to the development of new systems of CAPTCHA. Below are some of the CAPTCHA types: 1. Angled Line: An angled line, struck through curvy text. 2. Pictures: Users are presented with a series of pictures, and asked to enter the common element among them or click on a specific picture. 3. Simple Questions: Users are asked simple math or word questions like 'What is 47 + 11?' 4. Sound: An accessibility feature that is useful for blind users, this CAPTCHA plays an audio clip that reads out characters, which users have to enter in a text box. 5. Confirmation Page: A simple thank you page asks users to verify the information they have submitted. 6. Check Box: Users are asked to check a small box to confirm if they are humans The BIG question now is: Which is the Most Secured CAPTCHA type? Read more @ http://efogator.com/which-is-the-most-secured-captcha-type/ |
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