Captcha – The differentiator between Humans and Computers.
A CAPTCHA is a program that protects websites against bots and different types of automated tools by generating and grading tests that humans can pass but modern computer programs cannot.
The term CAPTCHA (Completely Automated Public Turing Test To Tell Computers and Humans Apart) was created in 2000 by Luis von Ahn, Manuel Blum, Nicholas Hopper and John Langford of Carnegie Mellon University.
How does CAPTCHA work?
CAPTCHAs were created as an ultimate solution against spammy software from posting comments on pages or abusing multiple orders at once. One of the most common forms of CAPTCHA is actually a simple image with several distorted letters. It is also common to choose from a variety of images where you need to select a common theme or object.
Software and computers are actually made up of a unique coding language, therefore computers find it rather difficult to understand languages because of the strange and intricate rules human languages take on, along with slang or jargon that humans use.
Who actually uses CAPTCHA?
CAPTCHA is widely used by a variety of websites that want to verify that the user is actually not a robot. CAPTCHA is used for verifying online polls, registrations, logins and 101 more access interfaces. This is suitable as a type of prevention against abuse or automated responses that could totally misinform statistics and various poll results.
It is also used for registration forms on websites such as Google, Yahoo or different mail services where people can create free accounts. CAPTCHAs prevent spammers from using automated tools to create a plethora of spam email accounts, abusing the system.
Also for ticket websites such as TicketMaster, CAPTCHA becomes a great solution to prevent ticket scalpers from over purchasing tickets for large events. This also allows credible and legitimate users to acquire tickets fairly while keeping scalpers from placing thousands of ticket orders, emptying the shelves and then controlling the prices through their own platforms.
Lastly, different blogs or web pages that contain message boards or contact forms utilize CAPTCHA to prevent this kind of spam-loaded messages or comments. Not only it prevents cyberbullying, but it also prevents bots from posting messages automatically.
Prevention from Scammers using CAPTCHA
CAPTCHA has a range of applications to keep websites and users secure. These are the following, yet not limited to:
- Protection against email worms and junk mail
- Protection online polling
- Protection for website registrations
- Prevention for dictionary attack
- Prevention against comment spamming on blogs
- Protecting email addresses from scammers
As much for prevention and protection, of course there are various uses to CAPTCHA itself, even though it also can be bypassed.
Ultimate solution to bypass CAPTCHA
There are various ways you can bypass CAPTCHA and actually still automate your tools or actions. Here we would like to introduce CapMonster, the ideal tool for this kind of purpose.