"CAPTCHA" is one of those terms that most of us have heard of or have seen while surfing the World Wide Web. While it may be known for providing a sense of safety where cyber security is concerned, it ...

CAPTCHAs are those now ubiquitous challenges you encounter to prove that you’re a human and not a bot when you go to log in to many websites. As a computer scientist, I see CAPTCHAs as an effective ...