“Select all images with cars,” the website asks you, showing a cluster of photos to choose from. Or you might be ask to decipher a row of askew characters, another common test to determine whether the user is human. Captchas – or Completely Automated Public Turing tests – are frequently used to prevent hackers from abusing online services with the help of bots. While this method has indeed proven successful in preventing someone from hacking your account with hundreds of automated attempts, for example, it also prevents people with disabilities from accessing the protected service. Without hel…