Algorithm cracks Google's Captcha system 67% of the time

It may seem like an unnecessary hurdle while you're online shopping, but Captcha tests are a key way that websites ensure online security. The tests, which ask you to identify words or pictures, are designed to tell the difference between man and machine. But a shocking new study has shown that computers can now successfully crack the test. This suggests that Captcha tests no longer offer the protection they used to. Captcha tests, which ask you to identify words or pictures, are designed to tell the difference between man and machine.