Good riddance Captchas as Google replaces squiggly letters

摘要

Google plans to replace Captchas with a simple tickbox, thereby eliminating one of the most common irritants people face on the internet. Captchas are online security tests that challenge you to replicate a sequence of distorted letters and numbers. Websites use Captchas so users can prove they are human, not some automated program. You may need to pass a Captcha test in order to buy tickets for an event. Ticketmaster, for example, uses Captchas to prevent touts from using automated systems to buy up the best seats at a concert.