CAPTCHAs, those images of squiggly letters that are a pain to solve, help digitize books, and are increasingly being cracked by bots, are taking a new approach. Instead of being a still image, CAPTCHAs are now being made into videos of moving text so they're easier for a human to solve but more complicated for a bot with NuCaptcha. NuCaptcha's Basic service is free and still … [Read more...]