![]() It can also be used to prevent false registration for free events. Preventing ticket inflation: Systems that sell tickets can use CAPTCHA to prevent scalpers from purchasing large amounts of tickets for resale. By restricting account creation, it prevents a waste of services and reduces opportunities for fraud. Limiting registration for services: Services can use CAPTCHA to decrease the amount of bots that create fake accounts. However, this makes the time required to cast a vote longer than normal which can deter people from voting multiple times. Maintaining poll accuracy: CAPTCHA security can prevent the skewing of polls by authenticating each user to ensure each vote is entered by a human. CAPTCHA is used by any website that wants to decrease the presence of bots on the site.
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