Editing CAPTCHA (section)

=== Human labor ===
It is possible to subvert CAPTCHAs by relaying them to a [[sweatshop]] of human operators who are employed to decode CAPTCHAs. A 2005 paper from a [[W3C]] working group said that they could verify hundreds per hour.<ref name="w3c_inaccessibility" /> In 2010, the [[University of California, San Diego|University of California at San Diego]] conducted a large scale study of CAPTCHA farms. The retail price for solving one million CAPTCHAs was as low as $1,000.<ref name="motoyama" />

Another technique consists of using a script to re-post the target site's CAPTCHA as a CAPTCHA to the attacker's site, which unsuspecting humans visit and solve within a short while for the script to use.<ref>{{cite web|url=http://www.boingboing.net/2004/01/27/solving_and_creating.html |title=Solving and creating captchas with free porn |last=Doctorow |first=Cory |author-link=Cory Doctorow |date=2004-01-27 |work=Boing Boing |archive-url=https://web.archive.org/web/20060209040456/http://www.boingboing.net/2004/01/27/solving_and_creating.html |archive-date=2006-02-09 |access-date=2015-04-27 |url-status=dead }}</ref><ref>{{cite web | url = http://petmail.lothar.com/design.html#auto35 | title = Hire People To Solve CAPTCHA Challenges | access-date = 2015-04-27 | date = 2005-07-21 | work = Petmail Design | archive-date = 18 September 2020 | archive-url = https://web.archive.org/web/20200918050055/http://petmail.lothar.com/design.html#auto35 | url-status = live }}</ref>

In 2023, [[ChatGPT]] tricked a [[Taskrabbit|TaskRabbit]] worker into  solving a CAPTCHA by telling the worker it was not a robot and had impaired vision.<ref>{{cite web |last1=Hurler |first1=Kevin |title=Chat-GPT Pretended to Be Blind and Tricked a Human Into Solving a CAPTCHA |url=https://gizmodo.com/gpt4-open-ai-chatbot-task-rabbit-chatgpt-1850227471 |website=Gizmodo |access-date=11 April 2023 |archive-date=11 April 2023 |archive-url=https://web.archive.org/web/20230411200745/https://gizmodo.com/gpt4-open-ai-chatbot-task-rabbit-chatgpt-1850227471 |url-status=live }}</ref>