Google is making changes to its reCaptcha system: distorted text images are out, while numbers and more-adaptive, puzzle-based authentication checks are in. The change is necessary because text-only ...

The goal of the Turing test is for a human to work out whether they're communicating with another person or a machine. Computers have gotten better at imitating people but they've also improved at ...

Sometimes it feels like it would be easier to translate hieroglyphics than try and determine what garbled text lies in a CAPTCHA box. We've all been annoyed by it, yet the reason it exists is to keep ...

Carnegie Mellon University researchers pioneered CAPTCHA, a system to differentiate humans from bots, revolutionizing web ...

We've all been there: You click on a website and are immediately directed to respond to a series of puzzles requiring you to identify images of buses, bicycles and traffic lights before you can go any ...