Australian consumer and disability organizations have begun a campaign to reduce the use of CAPTCHA, the visual tests used by websites to distinguish human users from automated computer bots. CAPTCHA tests are generally not user friendly and they are often completely inaccessible to people who are blind or have low vision. While audio CAPTCHAs are available, many users find them even more difficult to understand. The official web standards body, the World Wide Web Consortium (W3C), has said CAPTCHA excludes people with disabilities. It proposes several alternative methods of proving web users are human. The “kill CAPTCHA” petition can be viewed at Change.org.