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 ...

PCMag editors select and review products independently. If you buy through affiliate links, we may earn commissions, which help support our testing. Education site iClicker.com was hijacked last month ...

Everybody wants a better Captcha. Trying to type in those distorted words can be a serious pain, and it’s becoming less and less of an impedance to ever-more-intelligent spam bots. The Civil Rights ...