| The abbreviated word CAPTCHA sounds a bit strange. Yet, we make use of it almost every day. The Internet is a favourable place where users communicate, exchange information, do business in a cheap and convenient way. But simultaneously it is especially favoured by spammers, hackers & online fraudsters, with tons of spam and junk mail spreading around the global net.
If you decode the computer term CAPTCHA, you will get 'Completely Automated Public Turing test to tell Computers and Humans Apart'. It appeared in the year of 2000 as an internet security tool. It is a compulsory test that users have to before posting a mail. There exist different types of a CAPTCHA. However, on our computer monitors we usually see numbers & characters frequently crossed with a line. Letters are not typed straight. Thus, it takes a user several seconds to read what a prompt box contains. Some Internet users may find the CAPTCHA test excessive. However, it is a necessary preventative measure to protect your mail box from spam or junk mail.
Actually it is the computer that creates a test & assesses how successfully a user has passed it. But the computer program is unable to solve a test itself. So, if you have solved test correctly, the computer accepts you as human, as bots cannot solve a CAPTCHA test. This is the usual way the computer identifies whether users are human or bots.
It is known that spam strognly assaults the World Wide Web. Certainly, there are different anti-spam protection modules that sort out mail. Nonetheless, Drupal CAPTCHA is regarded to be a lot efficient. Along with the spam protection, the module secures the protection process as well. The Drupal CAPTCHA installs a mandatory test to be solved each time when users or guests are going to submit any form.
As seen from the above mentioned, a CAPTCHA is in great need in the technologically advanced era we live in. Thus, when it comes to picking out a CAPTCHA service provider, make sure it will satisfy your demands. You can download a free trial version to see if a module suits you. Some CAPTCHA modules are well-compatible with a number of programing languages. Ensure that your service provider will guarantee an emergency server in a remote network to maintain an unstoppable running of the system, whatever problems may occur. |
