reCAPTCHA has learned to identify people automatically

Added: 03.18.2017
Google has improved its security system against reCAPTCHA robots (Completely Automated Public Turing test to tell Computers and Humans Apart). Now it is able to automatically distinguish users from bots without using additional verification.
The new system works on the basis of a combination of machine learning algorithms and advanced risk analysis, and adapts to new and emerging threats. It analyzes a number of parameters, including IP address, mouse movements and previous interactions with reCAPTCHA to identify people. Now users will not need to click on the tick, enter text or numbers to prove that they are robot-free. The new system will be invisible to them.
This reCAPTCHA system will keep developing. The system will be recognized by those users who are marked as "suspicious".
We should remind you that in 2014 Google launched a new form of security from bots "No CAPTCHA reCAPTCHA". All it takes is a click to confirm that the user is not a robot.