Having this code should limit the amount of spam we receive and prevent actual comments from being accidentally interpreted as spam. For example, if you saw the code above, you would type in 6138B.

With the CAPTCHA breakthrough, scientists decided not to use traditional neural networks, which require millions of accurately labeled images to train a system.

WHAT ARE CAPTCHA CODES? Captcha (Completely Automated Public Turing test to tell Computers and Humans Apart) has become the standard term for simple human-or-robot tests.

Bots are better and significantly faster than humans at cracking Captcha tests, according to a comprehensive new study that inspected the security system deployed in over 100 popular websites.