A recent study reveals that automated robots are far more efficient than humans in resolution of the tests Captcha, a widely used security measure on over 100 popular websites.
In the study, scientists evaluated 200 of the most popular websites and found that 120 still use Captcha. They enlisted the help of 1.000 Internet participants from diverse backgrounds – as to location, The age, gender and education level – to take 10 captcha tests on these sites and gauge their difficulty levels.
The researchers found that many robots described in scientific journals could beat humans in these tests in both speed and accuracy.
Some Captcha tests took humans between nine and 15 seconds to solve, with about 50 to 84% accuracy, while bots took less than a second, with near-perfect accuracy.
“Robots are 85 to 100 percent accurate, with the majority above 96 percent. This significantly exceeds the human accuracy range of 50-85%," the scientists report.
They also found that the bots' solving times are "significantly lower" or almost the same as humans in almost all cases.
