Thanks, I had to make sure that no bots would read my blog, you know? CAPTCHA is something we most definitely have all seen online. A regular CAPTCHA usually requires the individual behind the screen to type in the displayed text from a distorted image. Despite seeing it, a common internet user most likely does not have a clue what it is used for. First of all, I should have asked what is it being used against? Robots…duh… Well, let’s take a closer look, because every time I am asked to fill out a CAPTCHA, for some reason, I think of an actual robot somewhere sitting behind a screen, trying to complete the required task.
To those who think bots are a modern concept, keep in mind that the first CAPTCHA, according to Captcha.net, was invented in 1997. This makes sense, since even during the early time of the internet, people were trying to bend the rules to their own benefit. A few commercial uses followed in 2001, with PayPal contributing significantly to CAPTCHA’s fame. CAPTCHA was used to prevent a variety of actions: financial fraud activity, creation of free emails for the sake of sending out spam, submitting comments for the sake of influencing the political opinion of the people, and many others.
But while the concept of CAPTCHA does sound very useful, according to the Huffington Post article, many have complained about it. People with certain level of vision disability were unable to follow through the CAPTCHA requests, and were filtered out along with the bots. Furthermore, since CAPTCHAs are computer generated, some can come across as offensive or just simply ridiculous requests. So while CAPTCHA is crucial to today’s internet use, it is important to constantly work on improving it.