An exploit for the bypass vulnerability required an HTTP parameter pollution in a web application. Google has fixed a bypass for its reCAPTCHA authentication mechanism – the Turing test-based ...

If you’ve ever submitted a form on the internet (and who hasn’t?), chances are you’ve had to transcribe a series of blurry letters and digits to a blank box. It’s a form of challenge-response testing ...

Pretty much every Internet users come across the reCAPTCHA human detector service which has visitors ticking boxes typing out garbled text in selecting buses or street signs to verify their human ...