What stops the robot from clicking the I’m not a robot button?
In: Technology
These things are called CAPTCHA which stands for Completely Automated Public Turing test to tell Computers and Humans Apart (Computer Scientists aren’t good with the concept of Acronyms).
The one’s with a check mark actually work by sending some data to Google (who owns reCaptcha), stuff like your mouse movement, your connection details and your cookie history. Google, understandably, doesn’t actually publish exactly what data is sent. They then use that to determine if you’re likely to be a bot or a human ( for example a bit may move the mouse almost instantly in perfectly straight lines, whilst a real humans mouse movement would be slow and jerky). If they then determine that you’re possibly/likely a bot you’ll get one of the secondary checks, such as selecting all pictures with stop signs. This is something that’s relatively easy to do for humans, but almost impossible for a conventional computer programme (it’s doable, and getting easier, with advances in machine learning, but still takes a lot of effort and time to get a program to any level of reliability).
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